Magdalena Onyszczuk

Magdalena deals with issues related to litigation at every stage.

Legal counsel trainee at the District Chamber of Legal Counsels in Warsaw.

She has been with the Firm since her fourth year of studies.

Graduate of the Faculty of Law and Administration at the University of Warsaw.

Karolina Piusińska

Attorney trainee at the Bar Association in Warsaw, a graduate of the Faculty of Law and Administration at the Nicolaus Copernicus University in Toruń.
She gained professional experience in the area of loss adjustment and insurance disputes, representing the interests of the insurer.
She currently deals with civil law and litigation.
Her professional interests also include criminal law.
In her work she focuses on reliability, commitment and individual approach to each case.

Igor Sypniewski

Igor specializes in litigation with a particular focus on civil law, including insurance law.

Graduate of the Faculty of Law and Administration at the University of Warsaw.

He has been with the M&P since 2024.

Attorney Trainee at the District Bar Council in Warsaw.

Kamil Piwowarczyk

Kamil is a trainee attorney at the District Bar Council in Warsaw. He graduated with a full-time master’s degree in law from the University of Lodz.

He is currently developing his professional practice in the M&A Transactions Department. His specialties include comprehensive support in M&A transactions, including legal due diligence audits and preparation of transaction documentation, as well as extensive corporate services for companies. He also has extensive experience in providing legal services for real estate, restructuring and bankruptcy processes.

He gained knowledge in the field of capital markets law, among others. at Dom Maklerski Navigator S.A., where he supported processes related to securities registration and verified compliance with AML and CRBR regulations. He has previously advised leading business entities, including the Union of Entrepreneurs and Employers and an oil and gas group.

During his studies, he was actively involved in local government, serving in such positions as. The function of Chairman of the Faculty Council of the Student Government of the Faculty of Arts and Sciences of the University of Łódź.

Emilia Mierzejewska

Emilia is an attorney specializing in private equity, venture capital and corporate and business reorganization transactions.

She graduated with honors from the Faculty of Law and Administration at the University of Warsaw. During her studies, she took part in the Erasmus academic exchange program at Radboud University in Nijmegen, the Netherlands, one of Europe’s leading law universities, which allowed her to gain in-depth knowledge of European law. She received a scholarship from the Rector of the University of Warsaw for outstanding academic achievement.

She has gained professional experience in renowned Polish law firms, where she participated in handling complex transactions for leading business entities. She has extensive experience in providing comprehensive legal services to business Clients, advising both Polish and international business entities at every stage of a transaction – from the negotiation and due diligence phase to finalization and post-trade support.

He is a member of the Bar Association in Warsaw.

Julia Pisarczyk

Julia supports the team of lawyers in the implementation of current tasks and daily duties.

She is responsible for the management of correspondence, preparation of documents and the smooth flow of information in the office.

She studies law at one of the Warsaw Academies.

Piotr Okoński

He specializes in civil litigation. He particularly focuses his professional interests on contract law and personal injury claims with a particular emphasis on medical errors and violations of patient rights. His practice also includes representing Clients in criminal cases, both at the pre-trial and trial stages, as well as in family matters.

He gained his previous experience in Warsaw law firms dealing with civil and criminal litigation and by running his own practice.

He is a graduate of the Faculty of Law and Administration at the University of Warsaw. During the course of his studies, he worked as a specialist in the field. enforcement proceedings in one of Warsaw’s law firms.

He is a member of the Bar Association in Warsaw. He has been practicing law continuously since 2018. He is also licensed to practice as a Legal Advisor at the District Chamber of Legal Advisors in Warsaw.

Mateusz Psiuk

Mateusz joined the M&P in December 2025.

He has been a trainee attorney at the Warsaw Bar Association since 2026.

His area of professional interest remains civil law in its broadest sense, including civil litigation, and criminal law.

He also gained experience through his activities at the Akademia Iuris Foundation, with which he was associated in 2025.

Victor Chukwu

In his practice, Victor deals with issues related to commercial and corporate law and M&A transactions.

Graduated in law from the Faculty of Law and Administration of the Jagiellonian University.

He completed postgraduate studies in Corporate Law at the Faculty of Law and Administration of the University of Warsaw and Information Security in Administration and Business at the Faculty of Law and Administration of the Jagiellonian University.

Attorney trainee at the District Bar Council in Krakow.

He has been with M&P since 2024.

Michał Żelechowski

A fourth-year law student at Lazarski University. Participant of the civil law research circle

“Vinculum Juris.

His interests include civil law and sports law issues.

At M&P, she is in charge of supporting the legal team in their day-to-day work.

He has been with M&P since April 2025.