How to go about finding the lawyer responsible for a Will? -

My husbands G-pa died when he was under age,leaving behind his 2nd wife(g-ma died prior) and 1grown child being my husbands loser father. Hubby was told by the g-pa that he being the only g-kid he would have an inheritance to be obtained when he turned 21. The 2nd wife moved after selling the house and we are unsure of where she is and hubby is now 30. I wondered if there was a way i could find the lawyer on my own?

You might have a chance of finding the lawyer but I would look in the County and State where the Will was probated. You can go to the probate office and ask to see a copy of the Will that was filed for probate. All those documents are public record. Then go from there.