Can I take legal action against my dr who is not compliant with request for medical records and who refuses to answer questions?

In NY Department of Health gets proactively involved to coerce compliance.

If it gets to the point where you are considering dropping the case, you might be able to trade your dropping the case for the defendant to waive...

I was fired 4 filing workers comp claim. Tried to deny me unempl & even appeal judge(?) didn't buy their reason for firing me.

Hopefully you have competent workers compensation counsel to help you fight through this.

ADA suit? Insurance wouldn't verify vendors auth to my medical data >2 wks of constant trying; she was not authorized at all.

You need an attorney who specializes in ADA noncompliance. Search the AVVO find a lawyer tab to find one in your area.

Am I obligated to give up ~$100K in my share of house equity to wife for the reason of providing stability to kids?

Your counsel should advise you, but if you are asked to give up 100K in equity, you should receive some monetary offset.

Enough evidence for a personal injury case.

Did the tattoo parlor do something that you observed that showed a break in aseptic technique? If not, infection can occur in the absence of...

Should I talk to the detective or get a lawyer first?

Get counsel before you get yourself in more trouble. There are rarely "brownie points" given for honesty in these situations and you don't know...

Can homeowners insurance deny payment when my house was burned by an arsonist?

As long as you are not the arsonist or suspected of hiring the arsonist I believe you should be covered unless there is a specific exclusion...

Can I get money from the party at fault's insurance and sue him for the remaining costs?

Most definitively. Careful not to sign general release when you receive funds from his insurance coverage.

Possibly if the dog had propensity to bite. They might have coverage through their homeowners insurance. Speak to local counsel as well to protect...