Guardianship or termination of parental rights and adoption would be your options.

No, you would need to contest the ticket.

I doubt abandonment could be proven in this instance without some compelling additional facts. Id suggest you meet with a real estate attorney as...

Child support is a judgment of debt against you and can be collected through civil process like any judgment debt.

Any time law enforcement seeks to talk to you like this, you should assume it is not because they are looking out for your best interest.

Yes, he can evict. The arguments about contract, improvements to the property, etc., would all be raised in a different hearing.

Iowa Code 232C. You should also consult the Iowa Rules of Civil Procedure, too.

Probably start by asking the landlord and maintenance not to do that.

Yep. That will happen. Do you have a question?

Call up qualified real estate attorneys and ask for their rates. This isn't a bid or shopping forum.