Personal Property

Is my 18 year old entitled to her stuff that is in my home even if we paid for it all?
My 18 year old ran away. Now she wants "HER" stuff. She has NEVER had a job and her father and I feel everything she wants is OURS since we paid for it for her to USE while she lived with us. What are OUR legal rights?
How do I go about getting my images copyrighted?
An art company in Austin Texas that deals in finding art for hotels and resorts saw my artwork on my website and wants to commission me to do two large original pieces for a resort in Florida for a public space in the hotel. I want them to sign a form stating that the artwork I create for them will not be copied or reproduced in anyway for anything else (e.g., prints). How do I go about getting say five of my images copyrighted for my protection?
What can I do about the dealer that did not put up my mobile home correctly causing severe damage?
I bought a mobile home from a dealer. He was also paid to deliver the home and correctly place it on the lot. My home is breaking in two and when I call him he hangs up on me.
Is my landlord liable for the upkept of a rented mobile home lot?
I own my mobile home but the rented lot that it sits on is sinking because of a sewer main that run's off in my yard to the main sewer drain in the street. My home is sinking drastically. The lot owner says he is not liable.