Estate Law Questions? Ask an Estate Lawyer.
Hello and welcome! My name is ***** ***** I will try my level best to help with your situation or get you to someone who can.
This would depend on whether the testator was so heavily medicated as to be medically incompetent to execute any changes to the will. If so, then the changes can be challenged as void and a judge can throw them out.
The person challenging the will would have to prove that the testator was medically incompetent by getting medical records and doctor testimony stating that the person was so heavily medicated that they couldn't understand what they were doing when they made the changes to their will..
Ok, if she was never declared medically incompetent, then if she properly signed and had her will witnessed, then it would still be legally binding.
However, the marked out portion of her will would not be legally valid as any amendment has to be executed in a separate document called a "Codicil" and has to have the same formalities of the original will (signed, dated, witnessed). So the grandson would still legally receive whatever the will stated as a gift from the testator.