What are the penalties in a criminal preceding when a suspect is arrested without an arrest warrant/ search warrant in his home?

As pointed out, more information is needed to answer your question (but I don't suggest detailing specifics in an open forum like this). Speak with...

Can you date a guy who is geting a divorce even if his wife won't sign the separation agreement?

Of course you're free to date him. The real concern should be how that may/may not affect his divorce case.

Modification of child support based on "temporary" unemployment

You are under no obligation to agree to a waiver (and certainly not to file one on his behalf). If he wants a modification it is his responsibility...

What should be my next course of action? (details below)

I highly recommend that you hire a local defense attorney. You can search for one via this website. Be safe and good luck.

Possession second

You can search for an attorney with the search function on Avvo (due to regulations attorneys aren't allowed to directly solicit on this platform).

What should I do?

If you're really worried, you may want to hire an attorney to quickly review the ticket for you. This shouldn't cost much and it will provide peace...

Is it illegal for a 15 year old and an 18 year old to date? Even though we are not having sex or any sexual activities?

Dating is okay but refrain from engaging in sexual activities. Be safe!

How do I go about getting my record expunged

Unfortunately, NY law doesn't permit expungement.

Can a 16 year old female date a 21 year old female in New York?

All NY citizens are treated equally- dating under 17 is okay but refrain from sexual activity. Be safe!

You're potentially facing a felony charge so I highly recommend you hire an attorney.