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the firm

In the end, it’s all about QUALITY. About commitment to legal excellence, outstanding client service, and ability to develop forward-thinking legal solutions.

We bring industry expertise, strategic approach, teamwork and value to the table.

We are CDZ Legal Advisors.



At a worldwide level, as part of INTERLAW, we assist our clients on cross-border matters by working in integrated teams with lawyers from top firms in major jurisdictions in EMEA, the Americas and Asia. We have significant experience in leading and participating in integrated multi-disciplinary teams to provide seamless client advice.


We are actively involved in international employment law projects

Our international expertise is strengthened by working closely with Transatlantic Law International (TALI), a dynamic global business law platform providing support on cross-border projects in 95 countries.


Анджей Хаец

Andrzej has over 20 years’ experience in transactional work, principally in venture capital, M&A and privatization transactions. He specializes in corporate law, commercial law, telecoms law and private equity transactions. He prepares and supervises international issuances of securities.

He advises on the investment process, including developing the structure of the investment and the forms of capital raising. He deals with capital restructuring transactions of companies and capital groups.

Andrzej represents both domestic and foreign investors, as well as investment and private equity funds, and companies from the TMT sector.

He has been repeatedly recognized by The Legal 500 EMEA, Chambers Europe and Best Lawyers. In 2019, he is recommended in the field of corporate, commercial and M&A, private equity and restructuring law.

Legal Advisor, Partner
Head of the M&A and Private Equity Practice Areas

Эва Дон-Шемён

Ewa specializes in advising international clients on employment law with a particular emphasis on the business and financial services, and TMT sectors. She advises on opening shared services centers in Poland.

Ewa advises on the process of building the HR strategy, human resources management and human resources policies rationalization, as well as on international transfers of employees. She advises on making global business policies compatible with Polish law.

Ewa was a management board member and chief legal officer at Netia S.A., a telecom company listed on Nasdaq and the Warsaw Stock Exchange. Earlier Ewa worked for Shearman & Sterling in New York where she represented investment banks on TMT and energy transactions and worked on US financial regulatory matters.

Ewa is recommended by The Legal 500 EMEA 2019 in the field of employment law. She is a member of the program board of the Helsinki Foundation for Human Rights.

Advocate admitted to the New York Bar, Partner
Head of the Business Services Industry

Мацей Котлицкий

Maciej specializes in mergers and acquisitions, and capital markets transactions. He advises on public equity and debt capital transactions, including initial public offerings (IPOs) and secondary public offerings (SPOs). He deals with leveraged buyouts, corporate finance and restructuring transactions, and Polish and English corporate law.

Maciej advises both Polish and international investors, including, among others, private equity and investment funds, companies from the TMT industry, and financial institutions.

In addition, he advises clients on disputes against public companies or their shareholders, mainly concerning tender offers and delisting from the Warsaw Stock Exchange. He also advises public companies on a day-to-day basis, including on corporate governance, securities law issues and stock exchange requirements.

Maciej is ranked by The Legal 500 EMEA, Chambers Europe, and IFLR1000. In 2019 he is recommended in the field of corporate, commercial and M&A, private equity and restructuring law.

Legal Advisor, Partner
Head of the Capital Markets Practice Area

Шимон Скендзелевский

Szymon advises private equity and investment funds, Polish and international companies as well as private investors on M&A deals, joint ventures and real estate transactions.

He advises on financing and refinancing transactions that form part of real-estate investment and development projects. He deals with capital market transactions, including private and public offerings.

He advises on company restructurings through mergers, transformations or de-mergers (divisions).

Szymon is ranked by The Legal 500 EMEA, Chambers Europe, and IFLR1000. In 2019 he is recommended in the field of corporate, commercial and M&A, and private equity.

Legal Advisor, Partner
Head of the Project Finance Practice Area

Патрик Галицкий

Patryk has over 17 years’ experience in real estate law and mergers and acquisitions. He specializes in real estate transactions, financing and refinancing investments, as well as restructuring processes.

He handles sale transactions of office, industrial and retail properties, including real estate sale-and-leaseback transactions.

He advises international investment funds and private equity firms, Polish and foreign investors, developers and financial institutions.

Patryk is recommended by The Legal 500 EMEA 2019 in the field of real estate law.

Legal Advisor, Partner
Co-Head of the Real Estate and Construction Practice Area

Петр Крычек

Piotr specializes in competition law, employment, intellectual and industrial property law, with a particular focus on trademark issues. He advises Polish and international clients, including companies from the business services sector. He represents clients in proceedings before civil and commercial courts of all instances.

Before joining CDZ, he worked for the Polish Antimonopoly Office (now UOKiK), and acted as a head of the legal department, and board member of CANAL+ Polska (now nc+), the first commercial television station in Poland.

Piotr cooperates with the Helsinki Foundation for Human Rights and the Polish Society of Anti-Discrimination Law, and is actively involved in pro bono activities for a number of foundations and private individuals.

Piotr is recommended by Legal 500 EMEA 2019 in the field of employment law.

Legal Advisor, Partner
Head of the TMT, Competition, IP and Data Protection Practice Areas

Иоланта Оконецкая

Jolanta has over 20 years’ experience in corporate work, M&A and commercial transactions.

She advises on the formation, merger, division, transformation and liquidation of companies. She develops plans and strategies for sale or acquisition, including spin-off transactions. She also deals with the restructuring and structuring of capital groups. Jolanta advises on acquisitions and disposals of shares, general rights and obligations, as well as on cross-border transactions.

She advises a range of international companies in connection with their business operations in Poland.

Jolanta is recommended by the Legal 500 EMEA 2019 in the field of corporate and commercial law, and M&A.

Legal Advisor, Partner
Head of the Corporate and Commercial Law Practice Area

Петр Запальский

Piotr has over 16 years’ experience in real estate law. He advises on real estate mergers and acquisitions, investment and development, and real estate finance.

He advises on planning and development matters, land use, construction law, capital raising and financing project developments.

He negotiates agreements for real estate commercial lease, tenancy and sale, and the establishment of limited property rights on properties. He also advises on development contracts and agreements for the establishment of separate ownership of non-residential premises.

He represents clients before perpetual law courts and public administration bodies in real estate investment proceedings.

Piotr is recommended by the Legal 500 EMEA 2019 in the field of real estate law.

Legal Advisor, Partner
Co-Head of the Real Estate and Construction Practice Area


CDZ Breakfast | CDZ invites you to a breakfast meeting and discussion on


Venue: REGUS, Smolna 40 street
Time: 9 am
Please confirm your attendance at: CDZbreakfast@cdz.com.pl
Venue: at CDZ’s offices at 64 Juliusza Słowackiego Avenue
Time: 9 am
Please confirm your attendance at: CDZbreakfast.krakow@cdz.com.pl


Piotr Kryczek participates in a session of two joint Senate commissions

On 14 January 2021, Piotr Kryczek, CDZ Partner, was a speaker during a session of two joint Senate commissions: of Culture and Media, and of Human Rights, Rule of Law and Petitions during which the issues of deconcentration and the so-called repolonization of mass media in Poland were discussed.

Piotr Kryczek presented a report on planned changes to the Polish media market, compiled in collaboration with Marcin Karolak of CDZ.

Participants of the Senate session discussed possible directions in which the Polish media market, including the press, will move forward and the consequences of the takeover of Polska Press publishers by Orlen SA. Some speakers talked about threats to the freedom of media and pluralism of opinions resulting from ownership changes in Russia and Hungary.

CDZ collaborates with FIRST PR on participation in such events.

The Helsinki Foundation of Human Rights

The Helsinki Foundation of Human Rights celebrates the 15th anniversary of the Strategic Litigation Program. CDZ Legal Advisors have been active in supporting the Program from its inception and Ewa Don-Siemion is one of the Program’s Board Members.  See how leading Polish lawyers describe the significance of the Program to the development and maintenance of civil society in Poland: 

Maciej Kotlicki speaker at the Startup Wroclaw: Evolution Conference

Startup Wroclaw: Evolution is a business event that connects startups, innovators and investors from the technology and creative industries. It is organized by the Wroclaw Agglomeration Development Agency.

The conference is taking place on 30 May 2019 in Wroclaw and its theme is “Money”. It will focus on such topics as starting a new business, looking for an investor, preparing the company for an investment round and analyzing different ways of raising capital.

CDZ Partner Maciej Kotlicki will be discussing the best practices for raising capital for startups. During the conference he will answer such questions as: how to choose the best method of raising capital for a particular type of company? What is the financing and investment process? How to structure an investment agreement?  And finally, how to benefit from an exit?

CDZ is the conference partner.

Read more: https://www.wroclaw.pl/startupy/evolution

CDZ and ARAW organize a business breakfast for SSC companies

On 28 March 2019, the Puro Hotel hosted a business breakfast on “RODO storm in a cap of tea? Practical analysis of our clients’ first encounters with the legislation”

Dariusz Zimnicki presented issues related to Labor Code amendments resulting from GDPR, video and email monitoring, remuneration data as personal data and image protection.

Read more: www.araw.pl

A Date with a Startup

Are you a startup, a developer or designer? Do you want to swap ideas, share advice or meet your fellow entrepreneurs? If so, don’t miss the Developer Speed Dating event on March 7 at 6:30 pm at the Google Campus. You get one minute for a powerful intro, and two minutes to discuss, and then BANG! Another meeting back to back. Surely, CDZ will be there too if you want to gain legal insights!


Employment law developments in 2019

On 23 November 2018, CDZ and the Wroclaw Agglomeration Development Agency organized a workshop on the most important law developments coming up in 2019.

Weronika Papucewicz talked about the most important issues of Employee Capital Schemes (PPKS), the digitalization of employee documentation, employee personal data, the new trade union law, and caps on ZUS contributions.


press releases


CDZ advises Pharmena S.A. on its listing at the Warsaw Stock Exchange

CDZ is advising the biotechnology company Pharmena S.A. on the process of transferring shares to the Warsaw Stock Exchange from the NewConnect market where it has been listed since 2008.

On March 19, 2019, the Polish Financial Supervision Authority approved the company’s prospectus.

CDZ prepared the legal part of the prospectus, and in cooperation with the Brokerage House Vestor S.A. represented the client before the Polish Financial Supervision Authority in the proceeding regarding approval of the prospectus. Next, CDZ will advise on the process of listing and admission of Pharmena S.A. to the Warsaw Stock Exchange.

The team of CDZ lawyers is headed by Partner Maciej Kotlicki supported by Legal Advisor Piotr Rychta.

CDZ advises on a record residential portfolio deal

CDZ has advised sellers on a sale of two packages of apartments in the Pacific Residence housing estate located in Powisle, one of the most prestigious districts in Warsaw. Over 170 residential units have been purchased by foreign investors.

Given the number of the purchased apartments, this is one of the largest portfolio deals on record on the secondary market of residential premises in Poland.

The team of CDZ lawyers advising on the transaction was led by partners Andrzej Chajec and Piotr Zapalski, supported by Olga Połowianiuk-Keczmerska and Szymon Żyto.

CDZ advises two investment funds on a capital markets transaction

CDZ has advised two closed-end investment funds: CP Fundusz Inwestycyjny Zamknięty and Capital Partners Investment I Fundusz Inwestycyjny Zamknięty on a sale of 100% of their shares and bonds in Symbio Polska S.A., a company listed on the NewConnect market, as well as on an investment in an FMCG company.

The team of CDZ lawyers was led by Partner Maciej Kotlicki supported by Legal Advisor Piotr Rychta and Advocate Anna Skórka.

CDZ advises IT Kontrakt on an IT outsourcing investment

CDZ has advised IT Kontrakt, a company owned by funds managed by Cornerstone Partners and Oaktree Capital Management, on an acquisition of Solid Brain, a company from the IT outsourcing industry.

CDZ’s assignment included carrying out a legal due diligence, developing the transaction structure and preparing the transaction documentation, as well as representing the client before the President of the Office of Competition and Consumer Protection.  The team of CDZ lawyers advising on the project was led by Partner Maciej Kotlicki, Partner Piotr Kryczek, supported by Anna Skórka, Advocate.

CDZ advises SaveCart on an equity investment

CDZ has advised SaveCart, an e-commerce company, on the process of an equity investment. Investors, including Future Tech FIZ, a closed end investment fund being a subsidiary of mBank S.A., acquired the minority stake in the company.

CDZ participated in developing the transaction structure and in drafting and negotiating the transaction documentation. The CDZ team was headed by Partner Andrzej Chajec and Advocate Anna Skórka, both specializing in M&A and private equity deals.

SaveCart specializes in real time message personalization in the new technologies and marketing automation segments. Its unique solutions based on big data are designed to raise sales of online shops.

SaveCart’s clients include such e-stores as Castorama, Duka, Nationale Nederlanden, Virgin Mobile.


CDZ nominated in Invest Cuffs 2021 Competition

CDZ nominated in Invest Cuffs 2021 Competition

CDZ Chajec, Don-Siemion & Partners has been nominated for the “Law Firm 2020” award in this year’s edition of the prestigious Invest Cuffs competition.

The competition is held to determine which Polish and overseas investment companies and individuals have made the largest contributions to investment growth. Its jury, consisting of industry experts and journalists, has made a short list of finalists which includes CDZ. Internet users will choose winners in each category in an online vote. Voting will continue until April 4, 2021, and the winners will be announced during a gala event which will be the culmination of another edition of the Invest Cuffs Conference and Fair (April 14-17). The conference and the award ceremony will be held online.

Your vote will be greatly appreciated!

CDZ and its lawyers ranked high by The Legal 500 EMEA 2019

In this year’s edition we have risen across the ranks and become promoted to higher tiers in the areas of commercial, corporate and M&A, private equity, real estate, and TMT.

Moreover, we are proud to have three standout practices: dispute resolution, employment, and restructuring and insolvency.

Andrzej Chajec, Ewa Don-Siemion, Krzysztof Żyto, Maciej Kotlicki, Szymon Skiendzielewski, Marcin Bącal, Patryk Galicki, Piotr Kryczek, Jolanta Okoniecka, Piotr Zapalski and Mariusz Busiło have also been recommended in their respective fields of practice.

CDZ and its lawyers ranked by Chambers Europe 2019

In this year’s edition CDZ has been ranked in Corporate and M&A, and Employment. Andrzej Chajec, Maciej Kotlicki and Szymon Skiendziewski have also been distinguised in their respective fields of practice.

Quote from our clients:

“Clients praise the firm's commercial awareness and also note its "good understanding of business issues."

CDZ and its lawyers ranked by The IFLR1000 2019

CDZ has been recommended in the field of Banking and Finance, and Capital Markers – Debt. Maciej Kotlicki has been also distinguished in M&A and Szymon Skiendzielewski in M&A and private equity transactions.

CDZ and its lawyers ranked high by The Legal 500 EMEA 2018

We have seven standout practices ranked by The Legal 500, including corporate, commercial and M&A, dispute resolution, employment, private equity, real estate, restructuring and insolvency and TMT. Andrzej Chajec, Ewa Don-Siemion, Krzysztof Żyto, Maciej Kotlicki, Szymon Skiendzielewski, Andrzej Abramczuk, Patryk Galicki, Piotr Kryczek, and Jolanta Okoniecka have also been recommended in their respective fields of practice.


The dismissed catechist has been rightfully reinstated

Supreme Court: The dismissed catechist, represented by Piotr Kryczek, has been rightfully reinstated.

CDZ launches a new educational and information platform dedicated to CHF loans

Have a CHF loan? We can help!

CDZ has launched a new educational and information platform dedicated to loans denominated in Swiss francs.The platform explains legal provisions and provides practical aspects related to CHF loans and disputes with banks, as well as practical advice on how to brace oneself for such a dispute, how to win it, what the costs are and why CDZ is the right advisor to choose.

In our view, chances of winning a court dispute against banks are increasing. We handle such court cases and are ready to represent you in this respect. We also liaise with economy experts who support us with calculations before a lawsuit is filed.

CDZ moves to downtown Warsaw

On 1 April 2019, CDZ have moved its head office to Park Avenue, a prestigious building at 70 Wspólna Street in downtown Warsaw.

The other registry data, telephone numbers, fax number and email addresses remain unchanged.

We’d love to have you come by and have a coffee with us!

Marcin Bącal in a TV show „Państwo w Państwie”

In this episode Partner Marcin Bącal, Co-Head of the Litigation Practice, clarifies situations in which the Court may hand down a default judgment and presents conditions to be met to enable the court to restore a time limit to take an action in legal proceedings.

Piotr Zapalski promoted to Partner

CDZ is proud to announce that Piotr Zapalski has been promoted to Partner. He will be co-heading the real estate and construction practice area.

"Piotr's promotion is an expression of appreciation for his long-term cooperation with CDZ, exceptional knowledge, loyalty and consistency in building relationships with our clients, as well as for his contribution to the development of our real estate practice,” said Andrzej Chajec, Managing Partner, CDZ.

The promotion is effective as of 1 March 2019.



The publication presents the regulatory framework and a broad overview of common issues in labor and employment law in 51 jurisdictions. CDZ contributed to the Poland chapter.



Learn more about competition rules in major markets. Competition law can vary quite significantly around the world. But you need to know what’s required, what’s legal and what you need to do and when. The guide has been prepared by INTERLAW members. CDZ contributed to the Poland chapter.



The fourth edition of the publication offers an in-depth review of market conditions and insolvency case developments in key countries around the world. CDZ contributed to the Poland chapter.



The guide covers common issues in employment and labour laws and regulations in 41 jurisdictions. It also answers the question “Where Next for the Gig Economy”. CDZ contributed to the Poland chapter.



The guide provides country Q&A chapters with a broad overview of common issues in telecoms, media and internet laws and regulations in 27 jurisdictions, as well as an overview of the UE’s digital single market proposals. CDZ contributed to the Poland chapter.



AUGUST LABOUR LAW UPDATE presented by Aspire and CDZ

On 7 September 2019 a largely pro-employee set of amendments will come into force. One of the changes widens the circumstances when employees are allowed to initiate mobbing lawsuits. Employees will be able to initiate such lawsuits during the course of employment and not, as is the case now, only after the employee terminated his or her employment contract indicating mobbing practices as the cause for the termination.

JULY LABOUR LAW UPDATE presented by Aspire and CDZ

On May 4, 2019, new regulations amending the Labour Code came into force. They are designed to align the currently binding employment law provisions with the Regulation of the European Parliament and of the Council (EU) 2016/679 (GDPR). The new regulations define categories of personal data that employers must obtain in connection with recruitment.

JUNE LABOUR LAW UPDATE presented by Aspire and CDZ

Employers whose employees travel on business often find it difficult to classify the time during which staff are outside their regular place of work. In accordance with Labour Code provisions, working time is defined as the time during which an employee is available for the employer at an establishment or any other location designated for work performance. Is the entire time spent on business travel treated as working tim

APRIL LABOUR LAW UPDATE presented by Aspire and CDZ

A PPK is a new long-term savings scheme that Polish employers must implement. Implementation of a PPK will be obligatory for all entities with at least one employee. The employer will have to enter into a PPK management agreement with a financial institution.


MARCH LABOUR LAW UPDATE presented by Aspire and CDZ

Starting December 1, 2018 doctors in Poland may issue medical certificates only in electronic format (on an e-ZLA form). Hardcopy certificates may be used in exceptional situations, such as no access to the internet or a home visit.


Rzeczpospolita 2019/07/05
Financial settlements with banks after Swiss franc loans are declared invalid
Marcin Lizurek

Courts more and more often invalidate loans indexed to or denominated in foreign currencies. In the last three years Polish courts have handed down more than 70 such judgements. Ground for judgements invalidating such contracts vary from case to case.

INTERLAW 2019/06/07
GDPR Anniversary
Piotr Kryczek

The GDPR has now been in force for a full year. So, in its first year, what has been the impact? Interlaw Ltd. asked its members from across the world - both inside and outside of the EU - five key questions about the lead up to GDPR and its impact post-implementation.


Rzeczpospolita 2019/05/09
Business travel and working time
Radosław Rudnik

Employers whose employees travel on business often find it difficult to classify the time during which staff are outside their regular place of work.


Rzeczpospolita 2019/04/18
Better chances of winning in court
Krzysztof Żyto, Aleksandra Hulewicz, Marcin Lizurek

Borrowers stand higher chances of winning lawsuits. Swiss franc loans commonly include an indexation mechanism permitting banks to convert loan amounts to a different currency and that mechanism is often considered by courts to be abusive and thus unlawful.

Rzeczpospolita 2019/03/122
Conversion of perpetual usufruct into freehold
Magdalena Boguska

Entrepreneurs must remember that they need to decide by 31 March 2019 on how long they will pay conversion fees that replace annual perpetual usufruct fees.

Rzeczpospolita 2019/03/15
Sharing sensitive data in M&A transactions
Jerzy Kapitańczuk

Defining the scope and nature of shared information is crucial for accurate valuation of a target company. A bidding company must, however, be particularly careful at each stage of the transaction, especially when the deal is between competitors.




As a fast growing dynamic structure, we always bring new talents on board.

Excellence. Commitment. Efficiency.

If you cherish those three words — and the values they represent — you'll fit right in with our team.



Job description:

We are looking for fourth and fifth year law students who are available five days a week and have a very good command of English. Foreign internships, courses of European, British, and American law, as well as the knowledge of other languages will be an additional asset. We offer monthly paid internships with a possibility to extend.

Job description:

Department: Litigation

  • Are you a law student, year four or five, or a graduate?
  • Do you have a proficient or very good command of English?
  • Do you use MS Word, Power Point and Excel programs?
  • Do you have excellent interpersonal skills?

Join our team!


  • Participating in on-going projects of the corporate law or litigation department
  • Legal research, drafting of documents
  • Liaising with public administration authorities


  • An opportunity to supplement your theoretical knowledge with business practice
  • An opportunity of professional development in the selected legal practice area and exposure to new challenges
  • Working with international clients
  • A paid internship with a possibility to extend
  • Working in a highly integrated and experienced team
  • A chance to obtain permanent employment for the best interns

Do you want to join us? Email your CV to cv@cdz.com.pl with “Legal Intern” in the subject line.

Please insert the following clause: “I consent to having my personal data in my job offer processed by Chajec, Don-Siemion & Żyto Sp. k. with its registered office in Warsaw for the purposes of the process of recruitment to the position of Legal Intern (pursuant to the General Personal Data Regulation and the Personal Data Protection Act of 10 May 2018, Journal of Laws 2018, item 1000)".



Ewa Don-Siemion

ul. Wspólna 70
00-687 Warsaw
t: +48 22 492 40 00
f: +48 22 492 40 01

ul. Sienkiewicza 9/17
30-033 Krakow
t: +48 12 421 12 55
f: +48 12 421 03 06

ul. Sienkiewicza 72
90-001 Lodz
t: +48 42 231 48 17

Projekt zmian w ustawie o podatku dochodowym od osób prawnych (CIT)

Deklarowanym celem nowelizacji jest dostosowanie polskich przepisów do dyrektywy Rady (UE) w sprawie przeciwdziałania unikaniu opodatkowania oraz dążenie do uszczelnienia systemu podatku dochodowego od osób prawnych poprzez powiązanie wysokości płaconego podatku (w szczególności przez duże przedsiębiorstwa) z faktycznym miejscem uzyskiwania dochodu. Projekt jest obecnie na etapie uzgodnień oraz konsultacji z organizacjami zrzeszającymi przedsiębiorców. Zakładaną datą wejścia w życie nowych przepisów jest 1 stycznia 2018 roku.