Uniform Commercial Code laws are established by each state to regulate sales of personal property,. Purchase of real estate is not a UCC transaction.
Most Uniform Commercial Code transactions involve secured property, financed by a bank or lender with the title to the property held by the lender as security until the loan is paid off.
For a secured transaction, a UCC-1 financing statement is prepared and signed by both parties.
Here is a list of the Uniform Commercial Code statutes for each state.

