The list of documents is prepared individually for each client (as each case is different), but there are a few that are common. There are: vital records of applicant, documents proving kinship between applicant and his Polish ancestors (birth and marriage certificates), in some cases naturalization certificates and documents proving that your Polish ancestor did not serve in the foreign army. Since we have dealt with hundreds of cases until now, we usually know which documents are obligatory, which are not, and where to go in order to get them. If you are not sure where to start, just ask us.
Polish citizenship by descent