Andrew A. Bassak, an attorney for Williams' children, agreed.
"His intention was to not have this in the court," Bassak told ET. "As an intensely private person, Mr. Williams wouldn't have wanted this, so that's troubling to the trustees."
Williams' widow Susan reportedly wants some of his personal items left inside the house that she received from the trust even though his three children were named as heirs, but that's only part of the dispute.
"The biggest fight is the amount of money that's going to go into trust to take care of Susan Schneider Williams and to pay for her to stay in that house for the rest of her life," Bassak said.
Susan reportedly wants a say in how much money she receives, even if it means going to court.
Meanwhile, one year later, Williams' death is still not easy to comprehend. Three months after Williams' suicide, ET spoke to his son Zak, who filled us in on how the family was healing after such a tragic loss.
"We're working hard to build our strength and acclimating to the new normal," Zak said at the time. "A large part of what we're doing through this grieving process is giving and spending time focusing on others."
Williams' legacy is certainly vast and his absence will continue to be felt for years. In addition to his illustrious acting career, for which he won one Oscar, five Golden Globes and two Emmys, he also had a legendary stand-up career that drew enormous audiences.
Watch the video below to see ET's last interview with Williams.