Default judgement in CA - my consulting atty says it is difficult to obtain. Is this true?

No, it is not difficult. File the request for default.

My ex had his attorney file a 'motion to withdraw as counsel'. He and Attorney are going b4 judge tomm. Do I need to attend?

You don't need to attend, but it might be fun to watch!

Voluntary leaving the company. Do I need to pay back the relocation amount as part of contract ?

The tax withheld was presumably for income tax on the 5K. You need to pay back $5000 times the number of months worked/12 . You can reduce your...

I think this question needs to be in family law, not contracts. I'll change it for you.

A contractor scammed me by claiming he owned a licensed company who I later found out knows nothing of him.

I would notify the "licensed company" that this guy is saying that he owns it. Let them sue his ass. Demand your money back from the guy, and...

Is there a breach of contract given the business owner decided to rewrite the contact and have us sign it after berating us?

If you signed the new contract, you owe the extra money. No breach of contract facts.

You don't have to sign it. Demand that they allow you to take a copy to your attorney for his advice. Or leave and rent a booth elsewhere.

When selling a property as is, for cash only is it legal for the buyer to use a PO Box for his address on the sales contract?

I don't see why he can't use any form of address to receive mail.

How much payback, if any, is seller required to give back on Contract for Deed Agreement (CDA) to the buyer?

The assessed tax value of the home does not determine its fair market value or selling price.

Is There a way around this?

That sounds like a load of BS. Take your prescription to Costco... they will measure your PDI for free!