Contact the local tax assessor to see who owns the property (which bank has bought it back). Then contact the bank. You may also find information about the lender-owner in the achives of the newspaper, along with information about the foreclosure auction sale, etc. which may give you a person to contact for more information.
Call a local real estate agent for assistance. They may be able to determine who is "in charge" and assist you in this matter.
Helen Duckworth, Agent, Seekonk, MA
Research the owner online at the approprate Registry Of Deeds.
Find the REO dept of the owner.
Try and get to a decision maker or at least a department that can ge to a decision maker.
Follow their instrictions.
(Please note: when you choose an answer as a Best Answer, or at least give a thumbs up, it helps those who answer questions here.)