You can place it along the edges/trim of the mattress and other places where they travel and hide.Though I haven't used it for bedbugs, I have used it successfully for roaches (and anything with an exoskeleton). 

LAST would be quality of trim, for me. 

I would also suggest that you have a clean up crew bleach the walls and trim before priming the walls. 

Replacing the siding is a major expense; painting the siding and trim on the 2nd floor could run up $3-5K in expenses by itself.

Even worse, the urine can get behind baseboards and trim so you may not be able to neutralize the odor without removing everything and cleaning/painting behind them.

Seller painted walls grey, doors and trim white. 

If your door casings are wood or MDF make sure they're trimmed 1/2" or a bit more above the floor. 3.

They'll tape and/or paint all the corners, trim, windows, doors, and ceiling lines so all you have to do is walk in and roll everything in between. 

Mistakes, drips, runs, splatter, painting ceilings, trim, carpet accidentally will cost 3x the time and $ it took to pay them to screw it up in the first place.  

Check foundation, look for cracks in the drywall especially around doorframes, check framing, check roof, check for mold, check for rotting wood (tub surround, toilet base, flooring, under sinks, inside cabinets, the deck, eaves, trim)).2.