That's not a ransom, when you've committed a crime and someone threatens to report it. That said, it is probably a scam, and you should probably...

Paternity and divorce questions?

You're not going to get some treatise on the particulars of your situation because there's a lot. Schedule a time to go speak with an attorney...

18 year old lives with boyfriends parents for 6+ months, bio mom is trying to run her education, can she make her own decisions?

18 = adult, so what's the issue? If the parents want to influence, encourage, suggest, and so on, they aren't prevented from doing so, but she's 18.

Can I file any charges?

So you both bit and attacked each other? I wouldn't suggest you try to contact law enforcement about this because you both could be arrested for a...

No, they couldn't do what they haven't actually done yet.

NO. Classic blunder. Coordinate with his attorney on your response. Without knowing what evidence they have or don't have, your efforts could...

Is it legal to fire someone who is getting medically seen for issues?

You can be fired for not showing up to work, yes. Employers aren't required to provide you sick leave or a certain amount of it.

Can i get guardianship?

If she is 18 and without disability, she doesn't need a guardian, she is an adult.

Yes, they can term your coverage when they terminate you. COBRA is retroactive if you elect it.

It will change, but probably not over the threshold to warrant an increase in support, and yes, the other parent will have an opportunity to argue...