In some cases, people try to claim mom or dad verbally promised them something. These claims seldom hold up in court if challenged, Sleeth says.
If you are on the other side of the litigation, he says, file the challenge as quickly as possible. Many states put a time limit on the time for challenging a will or trust and in some cases it is as little as a few months.
“To avoid as many problems as possible, engage an estate planner or attorney who is experienced at dealing with these issues, and then listen to him or her,” Sleeth says.