Power of Attorney

Does this Power of Attorney language I commonly see draw, accept, endorse or otherwise deal with any checks or other commercial or mercantile instruments for my benefit have to do with my checking account?

My brother has Power of Attorney for my Mom who just passed away. It would be much easier to settle everything If I had it because he lives so far away. How can he relinquish it and give it to me?

I am Power of attorney for my parents and I am a signer on their personal checking accounts. What is my liability for their unsecured debt?

I have been assigned Durable Power of Attorney for both of my living parents. Should I file it with any particular entity to record it and validate it?

What lien forms do I fill out for this situation? My wife and I because of a sale of a piece of property being sold to a developer and the city taking its time to approve the sale, we had to find a new place to live. My mother-in-law co-signed for our new place. We had a agreement to pay her back when the home that was tied upin sale, sold. Since then my wife and I have separated and she says that the house will be hers, because in the state of Washington anything inherited goes to her. Her mother is 86. </br> I found this house at a very good price $100,000.00 for the property only and it had a very beat upmanufactured home on it. I moved in 3 months before my wife and mother-in-law and completely remodeled the place and it is now worth about $200,000.00, we spent about $20,000.00 of our money to help with private sub contractors. I have over a year of labor and organizing the work. What can I do for all I have invested in the property?