@Benjamin Ervin I have typically always reinvested my profits into more buy and hold properties, and have been able to scale up to about 400 units in 8 years. My units are all located in the same city, but stretch across many different buildings, from single family rentals all the way to 31 unit buildings. I have switched focus slightly in the last 12 months. There are a few reasons why I have done this.
1. Being only a buy and hold investor, the only time I have had larger chunks of cash is when I have done refinances, so a lot of time my cash supply is low and I was tired of that being the case. It is hard to accumulate cash to invest when you never sell anything and keep your debt at 60-65% of your asset value.
2. I want to transition out of my smaller, crappier, poorly built properties into better built properties in slightly better areas, and better buildings with proper parking lots, etc to attract better tenants. Doing this requires more capital than I have right now, however, in my market as is the same around the country, multifamily is currently overvalued in my opinion and in order to do this, I need to be creative (ie buying larger C class office and industrial buildings in residential zones and doing conversions to aprtments) or I need to wait for a market correction in the multifamily space which I believe is coming in the next few years.
3. Going back to my previous point, I believe a correction in multifamily is coming and I want to stockpile liquid assets in order to capitalize on this correction in the future in order to grow my multifamily portfolio with quality properties. I already have competent employees who are used to doing renovation work as every multifamily property I have acquired has been distressed and in need of renovation, so it is easy to transition into flipping which allows me to generate cash quickly.
I know that was a little all over the place but I hope this helps explain my mindset.