In addition to the imposition of a constructive trust, you can seek an order declaring a "resulting trust." A resulting trust arises where one person gives money to another who takes title to the property. The person who took title is deemed to be holding the property in trust for the silent partner. You also have claims for breach of the partnership/joint venture agreement.
I agree with the previous answer and would add unjust enrichment.
If this answer was helpful, please mark as helpful below. Please be sure to indicate the best answer Only If and until you and I sign an Agreement for Legal Services, I am not your attorney. These answers are provided for informational and/or novelty purposes
I would add that you may have a cause of action for unfair business practices under 17200, and breach of partnership agreement, if there is one. If he is doing this knowingly and maliciously, you may also want to add intentional infliction of emotional distress.