UCC Financing Statement for Family Loan

[Ryan Swan]

A family member loaned me money to make a property purchase at trustee sale. Their loan amount was roughly 30% of the purchase price of the property. We have a promissory note for the loan amount and I am paying them interest and principal according to an amortization schedule. I want to make sure their loan is protected via a lien on the property. I have the Form UCC1 completed and ready to file, but I'm wondering if this is all that is necessary? What other documentation might be needed?