My much older brother was always a cause of problems for my parents. Often he would disappear, sometimes for years at the time, usually soon after he had borrowed money from them. My Mother, just before she died, actually asked my Dad to try to keep some sort of relationship with their son. And, my Dad really did try.
For a couple of months after Mums death, he and my brother were often together. Then came the inevitable request, My brother needed some money to set up his latest harebrain idea. Dad was a retired working man, never owned any property - but he and Mum had been careful and had a small amount of savings. Against his own better judgement, he made a 'loan', and within a couple of days my brother did one of his disappearing acts.
It was eleven years before he re-appeared that time, and during those years my Dad died and his will left everything to me. Now this was not a lot (as I said, no property), but a few thousand pounds..
When my brother re-appeared sometime later - I never ever mentioned this money or will. He only re-appeared as his latest partner had recently died and he was lonely.
Just writing this as there are two sides to these stories about just one sibling being left things by parents.