My sibling and I co-own as Tenants In Common. After our parent died we both resided in the house for a period of time, but I moved away for a variety of reasons. We have had disagreements about what expenses should be shared, and about what each of us is entitled to by our ownership. Considering everything past as water under the bridge, I don't want to continue our co-ownership arrangement. Sibling has no interest in selling or in vacating the house, nor in buying my share. What options do I have?
I have to agree with this, you can get a lawyer or give them the house (a quit claim deed). You'll need a lawyer for the quit claim, but it will be very inexpensive.
Technically, you're not required to have a lawyer for the quit claim deed, but it would be ~$100 well spent.