Would the new layout be appealing to renters?

The layout of the rooms in these converted areas is somewhat unique, but more concerning to me is that the location of the new master bedroom in the basement/ground level is in a place with that is not abundant in natural light.

We only have a house or two, we say.And just because we got away with not having a professional layout when we got the mortgage for our first rental or even second rental, we think it's okay just to present a mortgage company, bank or hard money lender, just some figures written down on a piece of paper or on an Excel Spread Sheet.But what happens when the time comes when you want to really expand.

Maybe you think one backsplash would work better than the homeowner's preference or a modified kitchen layout would improve resale value. 

It was a house with a weird layout and fetched $1,300/month in rent in what I am sure some thought was a class c- neighborhood when we bought it. 

I know Philly follows it's own plumbing code but couldn't find the clearance requirements when reading through the code.The 18" is making it pretty difficult for us to get out bathroom layouts to work and was wishfully hoping I could show our contractor that it's only 15".Any insight would be greatly appreciated. 

It looks like a unique opportunity with the 1 Bedroom + 1 Den + 1 Bathroom layout and a sizable balcony.The estimated income breakdown is comprehensive, and the STR approval is a plus.

I appreciate you taking the time to lay out all these great points!

The design is a critical part for us too, we have enlisted an architect design our 4 layouts.

ADU layout.