Can i do anything about NCP refusing to allow me to pick up kids at agreed time?

You answered your own question see last sentence.

Civil small court claim on builder/ handyman

Sounds like you should file a lawsuit yes is that the question? and call the police if he threstens you.

Sure sue them or hire a lawyer to file a deist order in Court.

How to prevent attorney from recovering attorneys' fees when he destroyed the work product related to claim for those fees?

Sounds good. wish you the best of luck thanks for sharing.

How can they do that

Sure you should sounds right but if they don't agree not the job for you..........get one that is more to your liking and accommodate you. Most...

How to get his stuff back?

Sue them in small claims Court........................

Will be determined by child support division or court no enough info to guess.

How much would you have to pay for child support.

Will be determined by child support division or in Court no clue.

How do I get an official response from my HOA and their Lawyer about a remaining balance on past balances owed?

Unclear why you need an official balance if you had paid it off? Draft a letter that states the facts and support it with payments.

Could I report my employer for changing my W-4 form without my permission/signature?

yes you can report your employer to whoever or get them to correct their mistake.