Private money, investor equity, tenant vacancies can all eat up profits and it's multiplied on such a large scale.

I have joined a mastermind group which I know will help multiply my efforts.

Multiply that times faucets, cabinets, shower fixtures, flooring, etc.

What you go on to describe here is the money-multiplier effect, or "monetary velocity". 

According to a report by the Bay Area Council Economic Institute, for each job created in the high-tech sector, approximately 4.3 jobs are created (multiplier effect) in other local good and services sectors across all income groups, including lawyers, dentists, schoolteachers, cooks, and retail clerks, among many others.I also agree with Account Closed, 50,000 jobs x $100,000 will have a significant impact on any local economy.

That said - they are simply a "multiplier." 

Even with an increase risk in coastal areas, the 3-5x multiplier in performance with maybe a 10-15% risk increase Ian completely justified.  

The sum total of payments for a 30 year mortgage only requires multiplying the monthly payment by 360.

That is why FHA loans, house hacks, multifamily up to four units, etc. are such force multipliers for people looking for a home to live in.

wont judge anyone, but frankly sometimes all we need is a little faith and some  action and God can multiply our efforts.