What is the best resource for rental vacancy rates data?

I use it as a data point, but not the gospel. 

You need factual data based on your situation to get started and make a game plan.

Step 1: Go to: https://property.phila.govThis page will give you most of the vital data, in particular the "Market Value" of 2538 Cecil B https://property.phila.gov/?

So I decided to create a basic formula with a "decision engine" so I didn't have to make a random guess, but rather make the decision based on what the data shows every time I am faced with the decision to repair or replace.I am sure other landlords are faced with the same decisions, so I thought it might be helpful if I shared the spreadsheet I came up with.

. $11k in marketing if you aren’t ready to handle the leads will be $11k down the drain.The one software I’d pay for now is PropStream to mine data on existing leads and find new ones.

Check out this data report from the Short term shop https://www.biggerpockets.com/... 

They should be able to provide you with some accurate data for the specific house in which you’re interested.  

Look for:Close - within a half mile, ideally.Closed - actual closed sales, listing prices aren't good data points.Comparable - similar bedroom count, both with and without an ADU (b/c that's what you're trying to research).Recent - the more recent the sale, the more relevant the data point.So you look at your two lists, spot patterns, find the median, compare the two median sales prices, and boom that's a solid ballpark.If you want to look at "Do I build a studio ADU or a 1br ADU?"

Did anyone take notes on where Jeff said he was sourcing data for general market knowledge?