Legal Question in Real Estate Law in California

yes can file a lien. Owners can file homestead.

A revocable trust is zero protection from judgment liens. Only trusts that are irrevocable and in favor of a beneficiary other than the trustor are protected from judgments against the trustor. And even then they may be invaded under fraudulent transfer laws if made after the date the original liability arose that became the judgment and the trustor does not have enough other assets to satisfy the judgment. A homestead declaration can be filed on ONE property if it qualifies as the judgment debtor's primary personal home.

I agree with Mr. McCormick. If you are representing yourself, take a look at:

http://www.courts.ca.gov/documents/ej001.pdf

This is the form for filing an Abstract of Judgment with the county recorder. Note that you'll need to file one in each county where the judgment debtor has real property.