FIRST * record the judgement in the recorder's office.
SECOND * get the sheet from the court clerk that explains how to collect.
Her SS# may not be necessary as the credit bureau will know who she is from the address on the judgement, etc.
Send her a piece of mail with nothing inside marked ADDRESS SERVICES REQUESTED under YOUR RETURN address - send it to her at your/her OLD rental home and if she has put in a forwarding address with the po, you will get it back for $.50
If she has a job, you can garnish her wages, and if you know where she is, you can do a debtor's order of examination (OE) and bring her BACK to court and have her answer questions on her assets and what you can LEVY to collect the judgement!!!