O nas

LEGALITY comprises of a team of experienced layers, advocates and legal advisors with extensive and diverse professional experiences. We treat each case entrusted to us with engagement and creativity – we are looking for unorthodox solutions that are applicable and effective.

Due to our knowledge, experience and engagement, cases entrusted to LEGALITY are resolved with great effectiveness. We are quoted experts in several titles of national press, such as: Rzeczpospolita, Dziennik Gazeta Prawna, Parkiet.

Our professional attitude has been awarded with a distinction in 2018 plebiscite „Orły Prawa” (Legal Eagles)

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Our Team

Leszek Kieliszewski

Leszek Kieliszewski – Advocate. Expert on commercial law, financial markets and litigation

Gained his professional experience in renown financial institutions such as X-Trade Brokers, Santander TFI, and mWealth Management, where he was responsible for systems ensuring business operation compliance with the law, internal control, and audit proceedings.

Successfully represents his clients in commercial proceedings and in proceedings specific for financial markets matters. Defense attorney in commercial criminal proceedings – including cases involving Polish Financial Supervision Authority (KNF) and capital market offences.

Expert on anti-money laundering . Successfully implemented AML procedures in brokerage houses, investment fund companies, lending companies, cryptocurrency trading companies and other reporting entities. On multiple occasions participated in control proceedings carried out by KNF and GIIF (General Inspector of Financial Information) and carried out audit controls of effectiveness and efficiency of AML procedures in both domestic and foreign reporting entities (i.a. in France, Spain, Germany, Czechia and Slovakia).

Cited on multiple occasions in national press in titles such as Rzeczpospolita, Parkiet, or Puls Biznesu. Panelist on conferences focusing on financial markets.


Economic turnover

Capital markets


Sebastian Dąbrowski

Legal Counsel. Member of Warsaw Bar Association. Expert on commercial companies’ law, on agreements and contractual law, and on labor law. His professional experience comes from working in renown law firms. Sebastian is fluent in English.

Companies' law

Agreements and contracts

Labour law

Our standards
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We are in ongoing contact with our clients

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We are reliable and diligent

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We strive to find unorthodox solutions

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We clearly communicate rules of our engagement

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Information relied to us are kept in professional secrecy

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We inform about chances and risks of the case in a transparent way