New owner took subject to rights of prior owner. Retain counsel to oppose demand to vacate.

If BF daughter owns the house, she may demand rent.

Joint estate plan including Revocable Living Trust is best option. Consult estate planning counsel.

Neighbor has right to construct fence on her property.

Police and colleagues are correct. You need legal assistance. review facts, documents with civil counsel.

Your authority to manage property may/not have expired at date of H death. Your attorney may spousal property petition to transfer property to you.

You have no absolute right to visit father. Review facts with probate counsel and consider writing demand letter and filing petition for...

Possibly. Terms of trust control requirements to remove trustee and appoint successor trustee. I need to see trust to further opine. Link...

No. You are not required to support spouse childs from prior relationship.

Not enough information to opine. Hire Arizona attorney to investigate, demand personal property, file appropriate pleadings in needed.