I am guessing the POA and guardianship are properly prepared and the Advanced Directive is not. In the alternative the POA has language that...

Seek mechanical advice first. Then, depending, seek legal advice.

You might have to fight for this interpretation.

Waste no time. Google other doctors/medical provider groups, in your area. and make an appointment.

You need a lawyer to file suit to find out.

Look at every document involved and post your question in VA.

It depends on the language of your renter's insurance policy. Have an attorney review it.

This will be a fight. If there is sufficient money in the royalties, get a lawyer and fight.

You would need his consent. But why do you not seek child support?

It depends on how the house it titled. If it is in both names equally, you can sue for "sale in lieu of partition".