does the executor of an estate have to do what a last will states to be lea gel in Pennsylvania?

Question

if you dont do what the will says to do does it nulfy the whole will

Answer 1

if will is valid then it is valid if the executor does not follow the will they should be removed, could be sued for breach of fiduciary duty and a court order to enforce the valid will, but it will not invalidate the will

Answer 2

Yes or end up in formal probate and the judge will assign a lawyer to take over.

Answer 3

yES