Is it legal for a husband to charge his wife rent?

Sure can kinda weird but best to consult a divorce attorney or free legal aid. You can also charge him rent, money for housekeeping service,...

How long after purchasing a vehicle do I have to get ignition interlock installed?

You will have to read whatever court order ordered the interlock no way to know none of us have the Judge order.

Will i be able to drive if i get a interlock waiver...

No clue, as none of us work for DDS and know if you will get your license back right then.

Can my boyfriend file charges against his childs mother for allowing their daughter to ride in a car with no carseat

Call the police and ask..................................................................................

How can they arrest my son for pushing his dirt bike home from his work which is a dirt bike repair shop?

No clue how the "they" people can arrest your son as none of lawyers have the police report.

What rights do I have and what can I do or refuse to do?

Best to hire a local family/cps lawyer...................................................

No clue none of us lawyers have your case nor work for cps. Call cps and ask.

How can I get my kids back from my ex husband?

By having your family lawyer file an enforcement action in Court.

I was on probation period at the time on my brother death. I took a couple days off for breathen time.

No clue what you are asking not enough info. Perhaps ask your Attorney?

If I am a mobile tech would my mobile car be my place of business?

Perhaps no way to know who you work for and sounds good to me not enough info to answer.