Do you have to be present in person to sign to receive the receipt i-539 COS?

See the USCIS webpage: https://www.uscis.gov/i-539

How to go about the below situation?

Your statement is missing some vital bits of information. Spousal maintenance is possible in some divorces, depending on the circumstances. See...

Do I owe medical bills from car accident?

You do still owe your medical bills if they haven't been paid. A more important matter to consider is your cause of action against the attorney...

There might be issues about Fourth Amendment rights. https://www.law.cornell.edu/constitution/fourth_amendment

Is this grounds for malpractice and against who?

Your statement does not appear to describe circumstances comprising a cause of action at civil...

Is this a form of blackmail and what can I do about it?

See 9A.56.110 Extortion—Definition. 9A.56.120 Extortion in the first degree. 9A.56.130 Extortion in the second...

Can a minor modification be changed or ruled in favor of a major during trial?

Judges have considerable discretion in ruling on such matters.

Child support modification with business income?

See https://app.leg.wa.gov/RCW/default.aspx?cite=26.19 and https://fortress.wa.gov/dshs/dcs/SSGen/Home

Is a GAL in WA, Snohomish Co that be compelled to produce case file through formal discovery in a court motion ?

You can make a motion to the court requesting a subpoena pursuant to CR...

What can I do to expose a couple that has been spying on my personal life for years?

Maybe you should ask the court for a protective...