I've been living and caring for my Dad in his house for about 3 years and had cared for mom before that. Light duty compared to many here, he is fairly healthy but needs to have someone living here and assisting him. In his will, he wants to divide everything including the house in thirds to my sister, her son, and me. My (very controlling) sister wants to sell the house right away after my Dad is gone. Is there a certain amount of time, as a caregiver, I am allowed to stay in the house? I just want to be able to have time to find a place to buy, or possibly buy them out. They want to immediately start charging me rent.
So, try to make a deal with them. Failing that...point out that they will have some big legal bills if they cannot or will not come to an agreement. It isn't cheap to go through the civil court system.
I don't know that any one of the named beneficiaries could act independently and force a sale; I think the action will have to be joint.
I think I would start exploring your options now. Speak with a banker and determine if you could get financing to buy out the other 2/3 shares. Do some preliminary searching for housing in the areas of interest so you have an idea what the market is.
Sometimes we're in for quite a shock when we consider the cost of getting a loan and maintaining a place owned by someone else. Best to do some research now so you have options that can go into action when the time comes.
And one that might be difficult is ensuring that your sister pays her fair share of maintenance after inheritance. I would also think seriously about discussing that with your father. A Codicil (amendment) to the will might clarify that she is obligated for her 1/3 share of the costs until disposition of the house.
What happens afterwards depends on what everyone agrees upon. Is the house worth any hard feelings, and possibility abandonment between the siblings? You could remain in the house while it is being listed For Sale as homes show better if someone is living there. Maybe in exchange for rent, you maintain the house during the listing period. Keeping a house in model condition isn't easy. Yikes a Realtor is coming and the bed isn't made, laundry is piled on the washer, and the cat just threw up.
GardenArtist had a good idea about seeing if you could buy out the other two shareholders. Is there currently a loan or reverse mortgage on the house? Either one would need to be paid at the sale of the house.