Based solely on what you describe, you should refuse to sign a new quit claim deed and renounce the one you signed when you signed the land contract.
If you have performed your obligations, the seller cannot get the house back. If you have not performed, she has to either forfeit or foreclose the land contract, both of which require court action. (If she tries to rely on the deed you signed on the same day you signed the land contract, you should object that that deed was an unlawful attempt to deprive you of the rights provided by law.) If she tries forfeiture, you could defeat it by curing any delinquent payments. If she tries foreclosure, you could defeat it by paying the full amount due on the land contract.
I would recommend you give her a letter offering to give her the entire amount you think is owed on the land contract and requesting that she give you the deed in fulfillment at the same time. The letter should request that, if she disagrees with the amount you claim is owed, that she provide what she thinks if the balance due and documentation to support her number.
Answered on Aug 06th, 2018 at 6:46 AM