Do I send a debt validation request letter to the law firm representing the collection agency or directly 2 collection agency ?

Sending it to the law firm would be appropriate. If the debt is old enough, it may be past the statute of limitations.

I'm filling out memorandum of costs documents. Do I calculate accrued interest up to the date of judgment or the current date?

If this is a post judgment memorandum of costs, you calculate 10% p.a after the date of the entry of the judgment (when the judgment was filed),...

What can a collection agency do if no court notices are hand delivered?

Basically nothing except to contact you hoping will pay, although they cannot sue you or do anything else. You can write them a letter asking them...

What form do i need to file if he wont pay court ordered debt?

You should see a collection lawyer.

Is there time period before filing Chap. 11 BK petitioner is precluded from selling/transferring real property?

Depends when he sold the property, whether it was for value, and if within the applicable period, disclosed such a fact on his statements. It may...

What is the process and fees involved in getting a judgement again him and then collecting?

With a signed note (and hopefully proof of the debt), you should be able to prevail. Then you have to collect.

The article you cite is applicable to California. But the creditor can apply for and obtain an assignment order which is a continuous order...

Usually within a reasonable amount of time after the money is loaned, given the facts and circumstances surrounding the borrowing

How do I dispute or contest this recorded lien which I just found out this property tax year 2015.

The lien has no further force or effect unless the Electric Co. sues you within do days of the recoding of the lien. I.e. there is no current lien.

Any creditor can go after community property, even if it is a premarital debt.