I’ve been an executor for my
Mother, and as far as I can see there’s no check to see that you’ve carried out the bequests in the will. I did find it emotionally draining, though, and it went very slowly, so my sister (the other executor) and I agreed to hand a lot of work on to the solicitor. She was very careful about the rights of my brother, who had lived with my mum for some years, but didn’t want to be an executor.
The solicitor would certainly keep hold of the money and distribute it. But there’s no control over the possessions left in the house, AFAIK, so if there’s anything valuable, like jewellery, you might want to put it somewhere safe.
I think in this situation I’d turn to my nieces and nephews, who have always been close to our family.