You should be looking for something called “Los Estatutos de la Comunidad” for your community.
You should receive a complete breakdown of the running costs of the community, how much has been spent, how much has been collected from the owners, and how much and who owes money to the community.
This set of accounts must be produced for each AGM. If the community is new the administrator should prepare a budget for the first year.
The first start would be the president of your community who should tell you who are the administrators for the community. The president should really have the statutes and the bugdet for the community and should willingly hand them over.