I bought a house 3 weeks ago, and after moving in, I found there's smoke smell in the house, like tobaccos, especially in the bathroom, although I didn't notice that during the home inspection or the final walk through.
I cleaned the vent, the wall, everything I can think of, but the smoke smell still persists. I even called the fire department, but they couldn't find out the source either.
Could someone give me some suggestions on what I should do now?