Can my Mom still keep her Medicaid if we sell her home on a land contract?

Or sell her home after signing an estate recovery form? We know that the sell of the home will be reported to Medicaid, were not trying to profit from the sale. The home and that all proceeds go to her care.The home was rcently valued less than the original appraisal given to Medicaid, my mother is presently staying at a nursing home. The time is coming whether I sell the home now or wait until my mother has passed away. What I'm concerned about is whether Medicaid can come back at me later for the difference in the value of the home. I did sign an estate recovery from when we applied for her Medicaid. I'm not sure that I can even still enter into a land contract since I signed the paper work, my mother is a resident of Kentucky and I have her power of attorney.