There is nothing uncommon about making an inheritance conditional on something else. Conditional gifts are as old as estate planning itself. Inheritances are frequently conditioned on the beneficiary or beneficiary reaching a specific age or graduating from college. The majority of people do not see any debate in these conditions.
What takes place if a condition is questionable? Exist restricts to the conditions that you can set?
There are definitely limits, but they vary somewhat from one state to another. Normally, you can not force anybody to do anything illegal or inherently hazardous. What about making an inheritance conditional upon the heir getting married. There does not seem to be excessive controversial about that. What if the person does not desire to get wed? What if she or he is homosexual and lives in a state that does not enable gay marriage.
The point is not to suggest that you need to not leave conditional inheritances. You need to talk to a lawyer about the limits to the conditions you can set and the knowledge of setting conditions to control somebody else’s behavior.