I am wholesaling in Scottsdale, Tucson, Phoenix, Chandler, Meza, and Casa Grande so far.

There are a variety of products out there for sound proofing ranging from practical to what you would use to build a recording studio ;-)QuietRock and other products like it are a double layer of (typically 1/2") sheetrock with a baffle between them designed to dissipate sound waves.  

I implemented Intuit Payment Network for $0.50/transaction but there are systems designed specifically for collecting rents.

And, as I've stated, the commissions are minimal in a properly designed policy.

We haven't had any tenant who didn't smoke inside once the weather got bad, no matter what they promised at the start.Also, people who smoke have a greater likelihood of taking up other addictive habits as well.... drugs, gambling, etc.Here's a copy of our No-Smoking policy, which has worked well for us:NO-SMOKING POLICY.Tenant acknowledges the premises are designated as smoke-free and agrees not to smoke and will not allow any of their family or guests to smoke on the premises, either inside the unit or outside on adjoining grounds.Tenant agrees to abide by this no-smoking policy.This includes smoking tobacco, marijuana, any other substance, and vaping.

Aeronautic engineers spend a huge amount of time designing to reduce drag, I can see this loan business is the same in that respect. 

QB is designed around A (singular) business entity. 

Real Estate is really where I feel my future will come though as it is designed to provide in retirement for me while the other avenues would allow me flexibility.  

I am a property manager/ maintenence contractor for my family's 40 units and 12 other units, work as an Admin assistant for our Home Health care company and have my own Product design startup company.

If I had to make a grand proclamation, I like to have at least enough cash on hand to weather a catastrophe and avoid losing my assets, wherein I had expenses and no income for a significant amount of time.