Or the house construction industry in general where they build for $X and sell for $X+margin?

Though I would caution you on hard money lending until you understand the industry a bit better, that can be very rewarding but you have to be able to do your due diligence on deals because you're turning over your hard-earned money to an individuals project, often a flip. 

Not WAIT for the most popular platform in the industry to dump them all at the SAME TIME in the SAME PLACE AFTER they have been posted somewhere else first.Read my profile for further insight and  if you want the study I done I can post it here. 

We specialize in helping investors access opportunities in both residential and commercial markets, leveraging our network and industry knowledge to identify high-potential deals.

Oregon coast crashed hard in the GFC   the Covid has it coming back FINALLY  but bottom line is very little industry and jobs.. since logging and fishing has curtailed .. so its retirement and tourism. 

So right now our main goal is the cash flow because in the end that is the way we will be able to move up in the real estate industry. 

For an investment of $197, you get a good overview of the MF industry.  

I have been in Roofing industry for almost 25 years have offices in 3 states and I know how tough the insurance companies are.

Is anyone familiar with the rule listed in the title and is anyone that has a full-time job in another industry using this rule?

So, I went hunting.Huntsville, Alabama, caught my attention because it’s a highly educated city with growing industries and a stable, diverse economy, as well as a really high quality of life compared to the surrounding areas.