Older homes may need updated style, but as long as your rough-ins are intact, everything should be fine. 

Use of Euro-style wall units for air-con.. 

Window Styles Explained: Choosing the Right Look for Your Home" – Simplify the decision process for homeowners."

Plus I dont think any contract would hold up if a seller wanted out.this goes for unsolicited  yellow letters/ robo calls / robo text style of marketing. 

Look at recently sold properties in the same neighborhood that match the size, condition, and style your property will have post-rehab.

Maybe his investing style is just way more passive? 

It is easier for me because I have basically the opposite of ADHD, but putting everything on Google Calendar and blocking out what you want to do each week usually starts to work wonders if someone sticks to it.

I'd be looking at multiple structures. we try to build below the average new build cost in our market in Columbus Ohio which is 515,000 last year and we target land 40-50k and urban core adjacent where we get higher price per square foot. we build for clients with margin around $190 a sq ft depending on multi or single. we can get that down in our triplex it's a little higher on our single family homes because of garages and limited economies of scale. hope that helps. idk Philly but if you show me the area and styles of homes I can give you some more insights. 

In Dallas, you’ve got a range of local outfits who focus on new construction..firms that, from what I’ve heard, know how to blend contemporary style with the Texan vibe buyers love.

Instead, investing should be a means to taking care of our needs and improving our life style.