What are my rights with my landlord and guest?

If your fiancee does not stay there shouldn't be a problem.

What can I do to stop my 10 yr old daughter from being tormented at school.

Call the superintendent of the school district...........

Ruining people's lives after a towing company takes their car and demands $300 to get it back has to be illegal right?

Does not appear to be illegal know way of knowing. suggest you borrow money to get your car back or ask churches or non-profits for financial help.

What steps should I take?

You should run not walk in getting an Attorney represent you in the guardianship proceeding.

Best to get your decree modified with specific language he is not to appear.

Harassment warning, how does this work?

Was the warning in writing/ What did the warning state. No way to know. Block her phone number and call the police asap if she appears. Lots of...

Does my fiancee have to return a firearm to her ex-husband that he told her she could have when he left her?

No way to know. Was it listed in the divorce decree?

Can I use evidence of my kids not going to school to get full custody?

Yes that is some good evidence but not sure it will amount to getting full custody without more. Consult a family lawyer in your area to see if you...

What can I do

You will need a family lawyer to file a modification of visitation. Call several and see if you may actually be able to afford one.

Will the title to my home be in my name alone

Don't know best to ask your divorce attorney as he has the divorce decree..