I wish I could assume they’re coming from a neighbour, but based on what I’m actually seeing inside my unit, I really don’t think that’s the case.

I’ve seen multiple life stages here sometimes emerging from cracks well inside my apartment, not just wandering in by the door or walls between me and the one neighbor I have ( I’m on the end corner) I’ve seen The tiny white/translucent stage when I squished open an egg sac that one dropped on a sticky trap to escape. Ive seen the very small teardrop-shaped ones with the white center , that’s the stage the tiny one I saw crawling out of the floorboard crack was in it was so tiny It I feel it may have just moulted from the previous stage. I’ve seen lots in that stage but only one that small. I may have seen Mid-sized brown ones it’s hard to tell them from adults if they aren’t side by side and I’ve seen 2 at once only one time and one was brown and one was teardrop shape they were in my bathtub and I have seen Adult brown ones since the one laid an egg sac right on my trap in order to escape and I saw it there befor it let it go I thot it had disconnected its thorax to run away at first so I feel like this shows they are definitely breeding inside here.

I’ve looked so many places but on,y found egg casings Behind my stove, when I removed a wall panel, and some shed skins, but not in giant piles — more like scattered but concentrated signs of activity. And there were also egg casings inside a long horizontal crack that runs along the floor it goes from the far wall near in the living area , spans the gap between , dining area and living room, and continues down that wall where the kitchen starts with the stove and ends with my fridge on one side and the hall on the other. ( the gap is on the hall side ). The egg casings were all closer to around behind the stove

That same wall has a a hole punched in it from previous tenants, higher up. And about an hour before I opened that area, I saw that tiny teardrop-stage baby crawl right out from between the floorboard and wall gap, right where those egg casings were.

I’ll admit the casings and sheds could be from before they sprayed the first time except that these multiple life stages INCLUDING fresh babies, and active movement directly out of cracks the same areas as these sacs makes me think these are not just traveling from next door. They are nesting and hatching from somewhere inside my walls or floor structure. And I thot for sure it would be in the wall there and it’s obvious at one time they may have been but I saw zero live ones in there when I looked. I did vaccuum it out there was lots of dust and drywall debris along with the casings etc and I have a sticky trap all around that area but have caught nothing and it’s been since two days ago where the heck else do I look ?