Estate Law Questions? Ask an Estate Lawyer.
The appropriate venue to contest the estate is the state and county of his legal residence when he died.
Any interested party can petition the court to open an estate in probate. Once there is court oversight you can get an order from the court demanding the widow produce the will under penalty of being held in contempt.
Yes, she may. It would really depend on the terms of the trust. The estate rep would need ot contact the plan administrator.