The money paid to live there likely will be considered rent. You will not obtain any ownership rights just by paying the costs and expenses. Depending on the particulars, you may have a claim against the estate for funds expended in preserving the property. I recommend sitting down with a probate attorney in your area to go through the facts with you in detail, and advise you.
Best of luck.
Answered on Apr 21st, 2021 at 11:53 AM