#illegal alienation

If the Apstein mansion was illegally alienated, do I have the right as a citizen to challenge this purchase and sale agreement in court if I believe it violates the interests of the territorial community?

I want to know if it is possible to return a land plot if it was alienated as a result of a criminal scheme, which is mentioned in the article about the NABU's exposure of a scheme to seize 18 hectares of land worth over UAH 160 million. What are my actions in such a situation?