There were 30-40 boxes of DirecTV dishes and mounting brackets on the porch, plus other hardware.  

Good quality curtain rods, properly and securely mounted, let Tenants provide their own curtains.

Normally this happens "automatically" when they are mounted in the window, but it's a good thing to check every couple of years, so they don't start dripping inside the house.If the unit ends up dripping somewhere you don't want it to, some units have a place you can connect a drain pipe/hose and move the drip over a few feet.

Carbon Monoxide Detectors- there were carbon monoxide detectors mounted on the walls in two of the apartments. 

I grew up in NJ but spent 2002-2015 in Upper Mount Bethel/Roseto (just up Bangor Mountain from Stroudsburg) Easton has seen a resurgence in recent years.

My husband and I work in Anacortes right now, but live in Mount Vernon until we find the right place in Anacortes.

I would be looking at Sultan & Mount Vernon specifically. 

I've mounted simple master-lock combo lockboxes to foundation walls at a couple of my properties but am not sure if that is the best option. 

The setup was cake, you just need to use sticky pads that they provide to mount the sensors around the house and two screws to mount the keypad.

I have some tiny baths and we have mounted wall cabinets to make up the vanity space and used pedestal sinks for a less tight entry, So if you lose a vanity you need somewhere to put stuff.