I went home and started reading about tax lien investment and found out that EVERY state puts up their liens and deeds for auctions FIRST, and investors must bid either to pay more for reduce the % of interest.   

The crazy thing was that we didn’t lose cash flow by doing this because the mortgage pay down reduced more expenses than we lost in income from selling the properties!

Reducing the cash required to move in by employing services that guarantee the security deposit for a monthly fee.

It can simplify managing your 20 units and reduce the need for multiple systems.

An ABNB I stayed in last winter was bought the previous year for $525k, that buyer then put it on the market for $525 less than a year after their purchase--today that asking price was reduced to $450!!!

A designer might help you reduce costs and get the property up and running much faster than you could on your own so you have to look at the numbers on a larger scale. 

(But it wasn't apples to apples.)I looked at AirDNA's data recently and don't disagree with their broad picture but again, people here know that the details and other factors can tell a different story and bring success for some in the same area (comparables) and loss for others.I'm all about reducing risk and my read on climate data and global economies (& yes, politics) incline me toward continued investment in properties that have multiple channels of revenue, above a certain latitude, and more upscale.

Don't reduce rent for longer terms.

One strategy could be to make accelerated payments on a 20-25 or 30 year mortgage which can reduce the scheduled payments 6-7 years.

That's how people get over-leveraged and into trouble.If you want to invest, do it the old-fashioned way: increase earnings, reduce expenses, save, then invest.