Quote from @Maya Cohen: I've been searching for up-to-date estimates of the cost per sq ft for new construction of SFH & MFH in Philadelphia in 2025. 

Why not use the higher end of the estimate and once you are serious about putting in an offer contact your broker then?

As a licensed contractor and real estate agent, I can review your estimates, ask the questions you might not know to ask, and help you make an informed decision that balances cost with quality.

However, I still struggle to understand the art of estimating rehab costs. 

Hello I wanted to know what does it cost to do foundation & framing for a 1,500sq ft house being built in Lehigh Acres Florida. 

We got three estimates from masonry repair companies ranging from $7,500 (patch) to $35,000 ("do this repair now or you will need a major $80K repair").

I would anticipate it would depend on the level of detail you desired but it has been my experience that the will do free estimates.

@Delroy WatsonI recommend connecting with @Jonathan Klemm to get an estimate.

I have read J Scott’s book on estimating rehab costs but the book is from 2019.

Assuming your numbers are accurate, I'm estimating your monthly "rent" or your contribution to the monthly expenses will be about $2,000.