The interest rate is 2.375% so I am having a hard time letting go of the excellent rate.My question is: To scale from here, should I sell it and buy a fourplex as a house hack? 

have an excellent day all!!

Excellent, @Chris Harper. 

Stay focused on providing excellent guest experience and you will stay higher in bookings and revenue. 

Or, is there a manual workaround like keeping track in a Google Sheet or Excel?  

Here's how I do my due diligence:1) Portfolio matching: (takes 30 seconds per deal)a) Have an educated opinion on where I think we are in the real estate cycles (financial and physical market cycles)b) Then and only then do I pick the strategies, capital stack, and specialized asset subclasses that make sense for that opinion.

Influence or control can lead to a beneficial owner even if you own little equity.Also it is 20 FT EEs AND $5M Revenue AND a physical office.

Hi Richard, I think you should connect with a  Realtor that wants you to see the property physically.  

I have an excellent consultant who helped us a couple of year back.

While cash flow can be limited within the downtown area, there are still excellent opportunities for cash-flowing rentals in surrounding regions.