Had a business luncheon with an attorney who actually represented me when it came to my father's estate - he handled the Massachusetts estate taxes, forms, et.al.
Our office has connections to all sorts of people like that to assist us in helping you with tax and other arcane concerns. They could be prior to death, as part of estate planning; or afterwards when heirs sometimes face tax consequences from selling stock, real estate, etc.
Death and taxes, as Ben Franklin said, two things that you cannot avoid.