If you walk through every inch of the potential investment property with a powerful flashlight to look and test for leaks, you’ll know exactly what you are purchasing.What else should investors purchasing mobile homes look out for?

I cleaned mine ok with lots of tedious caution and a little flash light, but am hesitant to recommend it as a DIY service to others since it was harder than I imagined and since I believe many AC companies will come do an annual service with coil cleaning for around $150 (again, just guesstimate) and likely have a method more foolproof than my aerosol cleaner can and garden hose, plus they can look the system over and catch/fix any small issues before a home inspector would find them. 

I told them I would bring them extra flashlights, batteries and water but they should get themselves perishables.  

Each tenant gets a free flashlight...

Also there are apps that have levels, tape measures, a flashlight, that work in a pinch.

We didn't have pet fees, but we made sure that we walked the apartment, during move in, with a uv light to ensure everyone knew that we would be charging for animal damages at move out.

Here is a YouTube video that shows exactly how to place the traps: https://youtu.be/H3aOa0Pe8kAThird, take a flashlight or a bright light and shine it under the car at night.

- atypical tools, such as a knife or flashlights?

:) By the time I got the voicemail and called him back, one of them had managed to brave the dark basement and flip the breaker back on....Tell them to install a flashlight app on their smart phone for the next time the power goes off in the dark ;)

You may also want to bring a flashlight to better assess darker areas, especially if utilities are off.