You are not entitled to an inheritance if your father leaves a will or trust and disinherits you. If he dies intestate, meaning he doesn't have an estate plan, you would be entitled to receive the same amount as your half-siblings. In addition, you should talk to your mom about whether she ever pursued child support against your father. If there is an outstanding child support obligation, you can pursue collection of those funds against his current assets. I hope this answers your question.
Answered on Oct 20th, 2014 at 12:44 PM