It turns out the extra lot has an easement on it preventing anyone from building or putting fences up.

Prevents issues with stove, fridge, dishwasher and leveling cabinets etc.

I agree, my first thought went to the property manager as well-if 3 of 4 homes are in disrepair then preventative maintenance is something the property manager probably ignored and is not worth the expense.

I can't stress enough to check your credit reports at least every 4 months with 1 of the bureaus but it sounds like this couldn't have been prevented since your mail wasn't forwarded.

The first duplex we purchased had oddly placed stains near the top of the walls by the ceiling, as if someone projectile puked on a regular basis.

just an FYI, he may be welding already, you can use 110 machines, the 220 just gives him more power, so your not preventing the use of a welding machine, just the power. also this is not like a torch and is very controlled.

If you prevent somebody from getting the unit they wanted with your phone call by making false statements, they might just come after you if you said the wrong things.

I blame it on them being upset paying late fees for last month's rent.Advice on how to communicate with tenant in situation like this to prevent them becoming aggressive and what do you think warrants reimbursement?

The way to beat this is by the 5 P's of the Marines: Prior Planning Prevents Poor Performance.

You can also try adding Biggerpockets.com to your contacts list, it helps in preventing the email from going to the spam folder.