I had a failed business "partnership" in which I never got back the property I paid for. Do I still have the right to claim the property?

The partnership was never put into writing or contract. I started a bakery in his restaurant. I paid for all of the remodel for my portion of the building. I have receipts for everything. I found out from the building owner that my partner never got approval for the remodel. I kept detailed records down to the penny. I knew something was wrong when he kept refusing to sign paperwork for our partnership. It's been about two years now. Can I still go after him for the cost of the remodel. We added value to the building including new high end wood floors, lighting, and french doors.