Good morning Elaina, my name is Ryan and I met your brother in law today! I completed your quarterly by first starting on the exterior by knocking down cobwebs and spiderwebs from windows, doors, eaves and garages. Next, I sprayed a liquid residual to help combat ants, spiders, stinging insects and general pests around the exterior foundation. I then went into the basement and found the source of the smell. I found a dead mouse in a glue board that I was able to dispose of properly for you. In the small utility closet I found an opening from a pipe leading in that your brother in law was going to seal up. I added two mouse bait stations in that closet and 3 in the bigger utility closet as I found the dead mouse in there. I added one more on the cross beam by the sauna. In the attic I found no new activity, but did add 2 mouse bait stations to monitor any. Please allow up to two weeks for full effectiveness of this treatment and don’t hesitate to call if anything should arise. Thank you