This assumes you have competent siblings
Some families have siblings that are more trouble if they get involved. My youngest sister is psychotic, and my one well sibling - a sister - and I wound up taking care of her and keeping her out of jail after her last episode, and finally placed her for a year in a halfway house (very hard to get someone into one of these).
She's medicated now, but also diagnosed with narcissistic personality disorder, so she's entitled, rude, selfish and snotty now that she's medicated.
My brother hasn't worked since he got out of prison and deported for a foreign country 10 years ago. He is prone to rage, lives 2,000 miles away in the mountains, and when our father died and I told him that I hadn't worked in the last 5 months and instead had helped with my father's healthcare and started working on sorting out 50 years of financial records, simply got on a plane and went home.
I was earning over $100,000 a year before I started I got involved in caring for my sister, father and now a mother with dementia. I've barely worked in 3.5 years, and am hurting financially form this, and going through paperwork is unbelievably unpleasant for me.
The only thing worse would be getting my siblings involved - I've cut them out of my life.