Preparing for an appointment with elder care attorney. Any advice?

As I've shared in previous posts, I live with my 72 year old cousin who suffers from dementia. I am her caregiver, 63 years old with congestive heart failure. So, not the best choice to tend to her long-term care but the only person in her life willing to do so.

About a year ago, we went to an attorney who claimed to be an elder care attorney to set up our wills and POAs. He created all our documents, but offered no advice as to how to navigate the obstacle course ahead of us. Several months after we spent quite a bit of money to set everything up, my cousin's brother asked to be removed as her POA after me as he didn't want the responsibility.

So back we went to insert another family member in his place. With another fee, of course. We discussed the plan was to keep my cousin in her home with live-in help for as long as the money would last, which isn't long. We have discovered this other family member no longer agrees with this and would immediately have her placed in long term care.

I've been reading about what to do if there is no family member to take over upon my death and am very confused. One article says I should find a fiduciary and also a trustee which is all fine and good except there isn't that much money and I'd hate to see it all go to administrators.

That's the long way around of asking for some advice as to how to set up the paperwork properly for this third and hopefully last time.

Can you offer me any ideas for how best to set this up and what other questions I should ask of the attorney. I am so overwhelmed with the responsibility of this and have no family to offer advice or support.

I appreciate any help you can offer.