Will I be responsible for any other debts she may have?

Is she really willing to do so? ?It probably would not be very smart for her to do so. if she transfers her whole interest, or even part of it, the lender will probably say the loan is all due and payable [if there is a due on sale clauses], the house may be re-assessed to its present value so the taxes go up, etc. You probably need to speak to a real estate attorney in your state.