Re: Co-Ownership-Tenants of Common
well, all three can either agree to sell or somebody can sue to partition the property. If that happens, there will be the costs of the court action and you will likely be looking at auction prices, which are always cheaper than the open market.
as to sharing bills; I don't know what bills you are sharing. If you are the only one living in the house, you should pay all typical utility costs since you are the only one using them. Taxes could be argued either way but since you have the benefit of the house, morally you should probably pay them. What other, if any, bills are being shared?
I am not an attorney and any advice is not to be construed as legal advice. You might even want to ignore my advice. Actually, there are plenty of real attorneys that you might want to ignore as well.