Hey John, maybe this might help you a little... basicly yes you do own the condo.
12property. com
Buying a Condo
Buying a condominium, is perhaps the simplest and easiest option available to foreigners. The only restrictions on purchasing a condominium, are that the percentage of units sold to foreigners cannot exceed forty nine percent (49%) of the total number of units in the condominium block; and that the funds used to buy the condominium have been remitted from abroad and correctly recorded as such by a Thai Bank on a Tor Tor Sam. Purchases of condominiums by foreign individuals come under the jurisdiction of the Condominium Act B.E. 2535 (1992).
The owner of each condominium is issued with a certificate of unit ownership. The certificate also has a statement saying exactly what percentage of rights over the common areas of the building each owner has.