We don’t plan to leave jobs and live off of the portfolio but have it as a wealth generator aka hedge against future risks

We basically want property to generate some cash flow and long term appreciation.

I simply don't understand the point of SubTo when there is a many generations old existing legal instrument readily available for use.   

She bought a duplex in San Antonio, and with a solid property manager, it’s been a consistant income generator for her.

What you would want to evaluate is the income generated from the income-producing property(s) to see if the income from your rentals would cover the cost of your new HELOC payment.

Can function as either co-living or one large multi-generation single family house.

If you've been active in this business and actively pursuing a profit during the year, the loss the business generates could help offset other income on your tax return. 

Some examples of properties with high asset reclassification include medical clinics and hospitals with technical machinery and labs, grocery stores with machinery, shopping centers with rainwater drainage systems and large parking areas, industrial manufacturing facilities with advanced equipment, apartment buildings in suburban areas with swimming pools, golf courses, tennis courts and large parking areas for tenants.Here’s a list of the average amount of assets that can be reclassified into shorter asset life classes based upon the type of property.

The goal is legitimate: due to complex tax rules, you have opportunities to game the system by selling some of your investments and intentionally generating either gains or losses.

We've run about a 20% vacancy rate. 2 of our MTRs have been great, the third we sold after it wasn't generating enough inquiries over two years of effort.