Hey Nathan - this is the million dollar question.I would take a look at all of the MLS data sites (zillow, redfin ect), fb groups / marketplace, craigslist, and other marketplaces where FSBO properties are listed.

Try AI resources like Chatgpt and Gemeni, you will have to feed your data and assumptions and they will both do wonders.  

Both are excellent platforms which save people immense amount of work and tme by compiling all the critical data you need in 1 place but there leads are way behind the county recorders/courts/notices i.e the source of most motivated seller leads.

Figured there would be a few data points left out of the equation' that I would need to circle back with :) .There are additional units not rented at this time which could be rented to increase the income.

I use Fred Economic Data's home price index.

If you have the data easily available, can you give us cash flow figures throughout the 13 years? 

Generally larger commercial properties and shopping centers are easier to classify with hard and fast rules, but to the points above the residential areas really move very quickly and have way more nuance than most people care to admit.zip codes are generally way too large for my liking at least in my market to provide any kind of insights other than macro level economics but even then highways or rivers that cut through a zip code can end up with totally different trade areas.we can get pretty granular with cellphone data and with grocery center data to understand the trade areas and their true boundaries, but that kind of data pull is generally only cost effective for investors doing larger scale projects or developments, and honestly we still just end up getting on the ground and feeling it out, so I generally tell people that the money is better spent on a plane ticket and weekend trip in the area you are looking rather than any kind of "trade area" level data studies.and generally B class in 1 area means something different than another. 

As another poster mentioned rates are lower than they've been in the previous 18+ months but unless some very surprising economic data comes out between now and when you did your refi it seems unlikely that rates are going up in the short term and there is at least a decent chance that rates drop a little more before then. 

You should reach out to @Melissa Haworth she can get the actual numbers/rents on STRs in the area to help run your comps.Each building is different, each area is different, it is important to find accurate data to make good decisions.

Thanks I now see that you would pay $8M.I've gathered all the data I needed.