I mean it's freezing out so i wasn't too worried and may tell the landlord about it when it was warmer but my only concern is, is that insulation safe for him to nest in? He spends a lot of time scratching at himself with his back paws and I worry it's irritation or something. Also it looks like he may have torn open the duct or something at some point. It's interesting watching him but I'm just not sure if it's safe for him to be living in there
You have a point there, I've been checking up on him pretty regularly with motion alerts and the only reason I haven't really done much yet is cause it literally just seems like he's sleeping and then going out in the morning to come back in the afternoon, but it does look like at some point he was chewing on stuff and that should be addressed, I will call my landlord and let him know the situation, I'm sure that if anyone goes up there he'll just immediately scamper out anyways, cause his nest seems to be right against the entrance portal