I bought a 2 family home with friend. I moving out, and she cant buy me out, so we selling. I spent $11,000 on some necessary remodel, where she did not have any to do. How does that work when we sell? Do I lose all that and split the profit 50/50?
The answer to this question is whatever agreement you and your friend make.
It seems reasonable to me that if the two of you agreed that the remodel was necessary and you paid for it, you should be reimbursed from the proceeds of the home before the rest of the profit is split. But that's just my opinion.
Jointly-owned homes are a difficult situation for this very reason. Hopefully, the two of you are still friendly and can work it out.