Sounds like your brother may have a valid gift but that would depend on how anything has been registered with the state registry of deeds. Even if your father gifted his portion (depending on how you own the property), you are still an owner and do not have to give your brother any money. What your father did was wrong but may not be entirely illegal. Depending on what your state recognizes (race, race-notice or notice), if your brother simply has a piece of paper but did not register it, then your brother may not have clear title. Further, if your father did not give your brother any sort of quit claim deed or transfer the title legally by registering the gift, it may not be recognized. Time to either talk to an attorney after you investigate with the registry of deeds and then time to talk to your father. Here is the problem, if you paid in and wish to do anything about it, you are still owed money and can probably sue your father and brother for reimbursement. Unfortunately, it is not going to be an easy case but the big issue here is gifting property would not have prevented your brother's wife from being deported. The reason for the transfer would need to be investigated just as much as the technical registration issues and property transfers.