I examined titles to real property for decades, and I saw a lot of strife come from estates. For myself I took a realization that nobody except a surviving spouse is entitled to an inheritance, so I decided that it was up to me to make my own way and accumulate my own wealth. The net result to me was that when I got pushed toward an early retirement, I had all of my debts except my first mortgage paid and I was able to retire on my own dime.
For what it's worth, an executor of an estate is a fiduciary, which means that he/she has an obligation to act for the best interest of the estate. This is where a good estate attorney would come in, determining whether an executor is acting in the best interest of the estate and whether it would be possible to have the court remove and replace the executor.