The grow room vents to the attic. The attic vents to the stair well. The stair well vents to the lobby. There is smell in the lobby. That sure is a mystery.
The seeds need a long period of cold prior to germination. It's called stratification. Seed stratification mimics natural conditions where the seed is cold in the ground for several months before warming up in the spring. Stratification can be done in a cold frame or a refrigerator.
It's no different than having an open container law. In other words, no drinking in public. Same for weed. No public use. Public use is unfair and unkind to others.
Feeding wildlife creates a nuisance problem for you and your neighbors. People doing illegal things should avoid being a nuisance to their neighbors. Don't be giving your neighbors a reason to be taking notice of you and how you live your life. If you feed these animals, they will come back with...
Harmless to your plants, man. Their presence suggests humidity and/or too much watering. May also simply indicate a healthy organic soil. Remove so that they are not distributing spores all over the place.