I've been taking care of my elderly mother for several years because she doesn't speak English and doesn't understand her financial responsibilities. Inevitably, I will be moving out of state in a couple of months. I've tried many times to convince her to move with me, but she declines and wants to stay in Washington state. She doesn't have close relatives and I don't trust any of her friends. Should I obtain a power of attorney for my mom's financial and medical situations?