If a H1b changes employer does it have impact on H4 visa who are in INDIA?

They should be sure to have a current letter verifying your continued employment.

Can a 11550 hs get me depored?

Please let us know what a 11550 hs is.

Post decision activity to initial review on i360 special immigrant petition in my case. Please help me Is it normal ?

Yes.

Can our adult son come to US for a family visit, while we are awaiting our I-130 petition to sponsor him for GC?

Should not be a problem, unless his priority date is coming up soon.

What happen if you confess.

They will deny the case, and in addition there are potential criminal charges.

Can i apply for religous asylum

If there is no place in the country where you can safely live and you have not resettled in a different country, then yes, you may be eligible.

I was adopted when I was 12. I am now an adult and a US citizen. Can I petition my biological father to come to the US?

No.

Yes, it's safe.

Married to us citizen, green card application

Outside the U.S. it takes over a year and has a high chance of failure. In the U.S. it takes 4 - 6 months and a high chance of success.

Affidavit of support for K-1 visa..

Try it as is, and if they reject it, get a joint sponsor.