How would I serve a defendant with the lawsuit that has the former attorney's name when now I am pro per?

File a substitution of attorney and then serve the substitution with the summons and complaint.

Is it better to file a motion or attend the status conference and ask for continuance to seek attny because your attny quit?

Serve and file the CMS and attend the hearing. It is likely the court will continue the matter for a brief period of time or set a trial date....

You need to obtain a stipulation to set-aside any entry of default or file a responsive pleading before default is entered. If default has been...

Did defense counsel default? Should I Request Default Judgment?

A demurrer extends the time to answer. You have no stipulation as to when the answer is due, only your demand that it be filed by a certain date....

A letter from an attorney should do the trick. If not, a petition certainly will.

What do you mean by an invalid bar association number? Search each lawyer by name at the Cal Bar website. There is no "invalid" status. If you...

You need to file separately, and pay separate fees, for each motion. It is efficient for the court.

A deed of trust? You should have received a Trustee's Deed Upon Sale. It conveys full ownership of the bundle of rights but comes with no...

The debt is stale. It's probably a scam. Ignore it.

There appears to be no immigration issues unless your immigration status is fraudulent. If so, consult both an immigration and family law lawyer....