Not on Kent Island...but not too far : Scott's Gunsmithing in Glen Burnie. Sharkey's a great guy and very competent. Be aware that he is often backed up a few months (because he is a pretty good smith).
I think Albright's in Easton still maintains their own Gunsmith as well, but not sure about that.
The only guy I knew, Mike, is not around anymore, I don't think. I know where he was up in the old Stevensville near the lawnmower repair guy. I will try to see if he is still around and let you know. It seems smiths are few and far between.
Came across this older gentlemen about a year ago. You can try him? I have no recommendation, just discovered he was real local
Name City State Zip Phone
GUN SMITH CHESTER MD 21619 (410) 643-7860