We are a small family and we are close to my husband's parents and his only sibling, a sister.
She has, up until fairly recently, not been working, although a couple of years ago she took over some of her elderly father's bookkeeping for a small company he still was running (or rather, his staff was running). Still only a maximum of 1–2 days' work per week.
As such, she became the go-to person for their parents in terms of sorting admin out and taking them to medical appointments, although we have helped too. Me, as daughter-in-law, especially with some of the medical stuff, but also occasionally taking them to appointments. To add, my husband works incredibly long hours, so I'm his proxy, but I also have an elderly dad who needs a lot of support. In fact, probably more help over the last 10 years than my sister-in-law has had to provide to her parents until very recently.
Long story short-ish. My in-laws, in particular one, are getting more poorly. The wife has severe dementia and needs to go into a home, we think, soon. They probably need to downsize either way, and may look for 24-hour care at home for the wife.
Just found out that my sister-in-law has very recently also got POA for medical decisions (she had it for finance before). My husband is not on either.
We do trust each other and have always been close, but I would have thought it would be good to have a second person on the POA, in case something happens to the other?
My sister-in-law is keeping us informed about decisions and medical matters, but we have no idea how much money the parents have, as she is in the meetings with the financial adviser, so we can't help advise.
But is it quite common for one sibling to be the only POA named? We all live very close to each other.