POA compensation?

Usually yes if you are the carer, but check with an attorney for your state rules.

Sounds like you need legal advice. Every state is different.

Its legal if the POA document has provided for it. Otherwise, consult an attorney.

There are a few ways to do this.   I think your biggest concern has to be if the parent eventually needs Medicaid, and you do not want the 1,000 treated as a gift.  There are a few ways you can do this.

1.  Rental agreement -- must be at fair market value, and you pick up on your tax return.

2.  Roommate agreement -- appropriate share of costs, not income to you.

3.  Caregiver agreement, must be notarized and signed BEFORE care starts.

If it is for their room and board and care absolutely it is legal.

If it is for POA responsibility then you need to see what the POA says about paying the POA, this is usually addressed right in the PIA.