During your parents’ lifetime, you have no rights with regard to their will. A will has no legal effect until the testator passes away, and it is entirely up to each individual whether to share the terms of the will with family members and other beneficiaries during his or her lifetime.
Once the testator passes away, the will is submitted to probate and becomes a matter of public record. At that point, the executor of the will is required to serve notice on beneficiaries and certain other interested parties.