It's a bit unclear what happened, but I'm going to attempt to answer your question in either scenario. If your aunt signed the deed over to your sister, then it is no longer your aunt's house because she sold it to her (or gave it away) when she transferred the title to her. If, instead, your sister prepared a deed and forged your aunt's signature, this is an invalid transfer. You didn't say whether or not this new deed done by your sister was filed in the county deed records, but the best thing to be done is to contact a local attorney for a consultation about this matter. If your aunt is still alive, this matter can be resolved relatively quickly with either a correction deed or a title examination.
Answered on Dec 02nd, 2014 at 6:34 PM