I get a laugh out of that mortgage company that designs the mortgage just for you, as you can do this yourself and without the obligation to pay the additional amounts.

There is not much wiggle room for skimming profits by design.

I'm determined we can start a coalition of lifestyle design awesomeness, using REI as a vehicle for accomplishing the passive income required for it!

@Denise EvansIn your experience, how important is it to already have a architectural design on hand.  

Engineers design buildings from roof to foundation, they need to calculate how big the wood need to be from the top, then design foundations.

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.

Best gift you will ever receive from Uncle Sam @Taylor Hawkins. 

He avoided "subdivision" law by breaking off lots every 5 years and gifting them to kids/wife etc.