Monika Leszko represents clients from the energy, real estate, infrastructure, construction, and media sectors in arbitration and common court disputes, as well as in mediation (both in court and out of court).

She has advised energy and real estate clients in transactional and corporate litigation, such as post-transactional disputes related to preliminary share purchase agreements, share purchase agreements, and shareholders' agreements.

Monika also has considerable experience in disputes related to CPAs, representing clients before courts with regard to the termination of such agreements and in precedential claims to confirm their invalidity.

She advises on disputes related to extraordinary and fundamental changes in the law (the rebus sic stantibus clause), in particular in energy law, and in disputes related to the claims of contractual parties aimed at restoring contract balance and the equivalence of performance.

In addition, she advises on contractual liability, in particular in relation to claims arising in the course of investment projects carried out under FIDIC contracts.

Monika has coordinated the Polish-side of a number of multinational disputes before federal and appeal courts in New York and Washington D.C.