They would attach POA. They said they wanted to make sure they would be paid. I told them I had POA but they said to sign my name and they would attach legal document my husband was there and said okay to do that way now I wonder. Their form did not have room for POA signature.....
I hope this was a recent occurrence. You should see an attorney immediately and get that signature set aside. They had you sign it under duress, I bet. Most likely verbally implying that they would not place your mother unless you signed. These are highly irregular business practices, they're only doing it because they think they can get away with it.
If you want to keep your mom there, get an attorney, attorney, attorney, and be prepared for some education and cold shouldering. If you have other choices, you may want to begin making arrangements to move her. If the ALF is willing to strong-arm you like that, there at ministration is sleazy and you better watch out.
Unless you are OK with paying her bills if your mom runs out of money, I'd call the business manager for the community and make sure you get this straightened out. Threaten to move your mom if they don't let you sign a new contract.
You really MUST sign as "power of attorney for - - - - - -."