I'd like to ban indoor smoking, remove some no-op vehicles and organize storage. 

Are there air gaps in doors/windows?

Families need a place to live and most prefer to live indoors.  

In fact  such homes are often of superior quality because they are built in climate controlled indoor plants rather than lots of inclement weather. 

We have done probate purchases in Oklahoma, the executor was the decision maker.

There isn't a big need to have an LLC if you don't have significant net worth.We have tenants make rent out to us. 

Most markets are expensive and you just have to find the upcoming potential money makers!   

Be a "Deal Maker": Know the terms of a retail / shopping center LOI inside and out, know what higher quality tenants look for, and know what you need to hold firm on and can bend on.  5.

The biggest issue with window units is that they can leak condensation indoors.

Especially if there is a good in door out door flow at ground level.It would be smart to lay a good carpet and underlay on the upstairs floor to minimise noise.