I really like the idea of recycling money while obtaining cash flowing properties. 

They continue to recycle the original money they put down and take profit along the way, while getting $100/month per door.

My plan is to keep 75-80% LTV and keep recycling equity/net income. 

Recycling a single STR - no.

RE cycles and the apex investors always win out in the REI circle of life.

I had another triplex where I gave one tenant a rent rebate, some years back of $75/month to haul the pails out at night and haul it back in the next morning.Here in NY, with recycling, there's four types of garbage and a can for each.

The trash/recycling is paid yearly so it is already paid for so we just added it, but it's pretty cheap.  

I heard that was a myth that recycled batteries (these batteries are not disposed) pollute more than oil when the full fuel product circle is applied, ie drilling, refining, delivering and exhausting.

Hopefully you're in a position to recycle the HELOC money quickly.

Intel is a great example, who is building the largest chip manufacturing plant in the US right here, and it will be a $20 billion dollar investment that brings a few new thousand jobs.https://www.dispatch.com/story/business/2022/01/21/intel-ohio-building-computer-chip-factories-licking-county-jersey-township/9173472002/ Another example of economic growth is the upcoming Ohio State University Wexner Medical Center Inpatient Hospital which is a 1.9million square foot hospital that will bring over 800 new beds and a thousand new jobs. https://abc6onyourside.com/news/local/new-osu-hospital-expected-to-transform-health-careHere are a few more recent investments https://www.10tv.com/article/money/business/hydrogen-power-company-hyperion-bringing-700-jobs-to-columbus/530-25907aab-5517-4661-a9f3-d2ed2d5be6b0 https://news.wosu.org/news/2022-02-08/rumpke-to-build-50-million-recycling-facility-in-columbus Check out The Complete Guide to the Columbus, Ohio Real Estate Market which goes through the Columbus, Ohio market in depth and will give you a better scope of where the highest levels of growth are taking place and where to look to invest.