Mr Michał Wielhorski > act BSWW legal & tax > Warsaw, Poland > Lawyer Profile

act BSWW legal & tax
ul. Chmielna 73
00-801 Warsaw

Work Department

Real estate, Investment financing


Attorney-at-law / Managing Partner


Michał has years of experience in real estate law, handling numberless mandates in this sector.
He advises on all types of real estate projects from the corporate, transactional and tax perspective.
He works primarily with large developers, focusing on retail and office developments, and guiding clients through all stages of investment processes (incl. due diligence, permits/licenses, financing, leasing and sale).
Michał assists clients in the negotiation and execution of real estate sale agreements, construction works agreements, service agreements (incl. ones with architects and other experts) and infrastructure agreements.
He also advises on leasing processes, negotiating and executing major lease agreements for retail and office space.
He boasts a strong track record in financing agreements.
He has worked with Buma Group, ECC Group, Echo Investment, Globalworth, Porto Office, Rank Progress, Reino Partners and YIT Development.


Polish, English, German


Graduate of the Faculty of Law and Administration at the University of Warsaw where he also attended a seminar on German and European law offered in cooperation with Rechts- und Staatswissenschaftlichen Fakultät der Rheinischen Friedrich-Wilhelms-Universität in Bonn.

Lawyer Rankings

Poland > Real estate

The ‘very professional and pro-active team’ at act BSWW is led by Michał Wielhorski and Marek Wojnar. Real estate is one of the firm’s core competencies, an area in which it handles large commercial developments as well as residential, hotel, leisure and logistics matters. The team covers everything from due diligence through to sale and acquisition, joint ventures, permitting, investment financing and leasing. Lease agreement expert Alicja SołtyszewskaMateusz Prokopiuk (who was promoted to the partnership in 2020) and Marta Kosiedowska are other key contacts.

Poland > Construction

The construction group at act BSWW has a notable emphasis on commercial, residential, warehousing and infrastructure matters. Led by Marek Wojnar and Michał Wielhorski, it acts for domestic and international clients across the spectrum of construction from public procurement through to (where necessary) litigation. Specifically, the team handles planning negotiations,  architectural services, FIDIC contracts and EPC agreements. In addition, the group advises on performance bonds, environmental protection matters, and zoning and permits. Mateusz Prokopiuk was promoted to the partnership in July 2020.

Poland > Banking and finance

act BSWW‘s group is focused entirely on investment financing, with particular expertise in the real estate sector, where it advises Polish and foreign real estate developers and investment companies on projects across Poland. Senior associate Mateusz Prokopiuk takes the lead on a number of real estate financing matters. Managing partner Michał Wielhorski has significant experience of debtor-side work.