Legal Question in Real Estate Law in California

Those things can be agreed to and documented. Seek counsel who can advise you how to do so and protect your interests in doing the transaction. Obviously there are economic issues, such as how much the equity is, how you can get the money to buy out his interest, what ther trerms of the buy out will be, whether this will endanger or accelerate your loan, etc.

This is a partnership breakup, just like a marriage. Both have claims on the asset and profit. If you can't resolve it yourselves, he could file suit against you and both of you would then present your facts in court through your attorneys, who will be costing you both substantial money. Feel free to contact me if serious about getting counsel to help you negotiate or represent you in the litigation if necessary.