Selling property to pay for long term care

My MIL is in declining health and needing to go into long term care which would be self pay (12k per month) She owns a piece of land worth 280k roughly. I feel that the land should be sold to pay for her care. My wife has 5 siblings, only 2 of which have any income at all. MIL may have enough in savings to pay one month (12k) I have the money to pay through an inherited IRA from my parents but I really don’t want to use it if I don’t have to. I don’t know if my mother in law would be considered incapacitated at this point but if she was how could we sell the land? We have no idea what her will says about the land and I don’t want to deal with it in probate.