I'd hope to actually only do a 50% LTV to keep this cashflowing solidly but get my money back out.

Keep a large emergency fund for the low times.

My brother is interested in selling his house to me, however, I’d like to keep the existing 2.9% interest rate on his mortgage.

Keep in mind that when you become a problem solver, things can get messy with the vendor, but that's why you get paid.

Storage occupancy rates during past recessions has remained relatively stableFor example, during a recession, when folks downsize from a 3 bed/1 bath to a 2 bed/1 bath, those people, historically, keep their belongings and put them in storage.Also, during inflationary times, self-storage operators can better manage rates because most leases are month-to-month.

These options allow you to tap into your equity while keeping your current property.

DUNS keeps a database of credit history on corporations.

Colorado Springs continues to get overflow from the much pricier Denver to the north, and it keeps showing up near the top of lists of best places to live, which is driving more people to move here.

Have you thought about keeping the property, lowering the cashflow by getting a HELOC, and continue holding all assets?

Once you are closed you can pull the permits fully and keep going from that point on.