My first self-developed software gave me efficiency.  

I currently use Gold Key Property Management in Anderson IN, and have been very happy with there services.

Since you already have an offer, it’s not really about whether the property will sit for six months, it’s about whether keeping it makes financial sense.

Over the last 3 months, I’ve moved 4 of our 12 units over to a property manager.

Have another self storage development identified.  

This one you will develop. 

The BRRRR strategy is tough these days (I even wrote an article about it that goes into more detail a little while back: https://www.biggerpockets.com/blog/beyond-brrrr-taking-advan...)In short, high interest rates as well as labor/material costs makes it hard to buy a property with debt and cash flow. 

Did you purchase this property all cash? 

To this day, I still use the BiggerPockets Calculator for everything from 2-4 unit properties all the way up to the 224-unit portfolio we're working on closing this February.

You should be able to take out a small loan using the property as collateral.