Is the area above the fireplace dirty?
Are there other building envelope penetrations, whether it be on the roof, under the eaves, etc. for fresh air or for venting some sort of exhaust (bathroom, kitchen, etc.)?
Where is the smoke smell the worst and/or first noticed?
Yes the first row of stone above the fireplace is slightly dirty. The smell is actually the worst in the eat in kitchen which is the next room over to the left. 10 feet-20 feet away It's an open floor plan so no walls separate the 2 rooms.