Surety bond needed for Attorney-in-fact?

What is the name of your state? Minnesota

I have durable power-of-attorney for an elderly neighbor. I am consulting with her and managing her financial affairs. Her sole assets are a house and under $3,000 in cash - she qualifies for Medicaid.
Her husband has died and she has no children. She does, of course, have relatives who would be interested in her assets once she dies. They probably do not know that I have power-of-attorney.
My question is, would I personally be protected from financial claims on the part of her family if I had a surety bond? My concern is that they might object to the state of her financial affairs and try to hold me responsible for it.

My response:

A Surety Bond would be a smart move on your part.

IAAL

Is a surety bond expensive? How does one qualify or obtain one?

(Reference to a website would be very helpful). Thanks.

Inquire with a local state bar association or at the courthouse.