My sister is a US Citizen, my mother Green Card holder. how long will it take to get US citizenship? can i apply backlog waiver

It mostly has to do with classification. You should meet with a loacl immigration attorney to review everything in detail.

Does every couple get called back for second immigration interview?

No.

Can You Sue your wife (US Citizen) and father-in-Law (US Citizen) on threatening you to Sign PSA(Settlement Agreement on Divor)?

Talk to a family lawyer.

Each attorney handles their fee arrangements differently. We often do take payments, but it depends on the circumstances.

Getting divorced after filing I-751?

As long as the marriage was "real" and there was no fraud involved, there should be no issue with divorcing. Yes, it will raise a red flag if you...

I want to purchase a car from a private seller with payments. How do I get a contract that states I get title after full pay?

You will need a simple purchase agreement prepared. Find a local attorney.

I have a Dominican Drivers Licence, so my question is what do i need to do to exchange it for a DL from the state of lousiana.

Call the Lousiana department of motor vehicles/licensing and ask.

Should I pay early cancellation fee even I have not activated the terminal of credit card processing?

Depends on what it stated in your agreement. I doubt it required activiation to become binding.

Punishment if charged with uttering ?

Forgery charges are very fact specific, and we can't really tell the details from your post. You may need a local criminal attorney to review your...

Can a person who is now 19 years old withdraw money from a custodial savings account without custodian consent?

Depends on the state, and how the custodial account was set-up. Call the bank and ask.