I've been investing there personally since 2019 and own 12-doors in Detroit proper.I lived on the ground there from 2017-2022 but now live back in California.To answer your questions... yes, you can still find cash flowing deals in Detroit.

Said I wasn't allowed to have a glass window in my old back door. so I covered it in cabinet grade plywood and trimmed it out to make it look as good as possible.

that we’ve learned in our 24 years, managing almost 700 doors across the Metro Detroit area, including almost 100 S8 leases.

they will not usually do garage conversions.  

Quote from @Jim Reynante: After owning properties C/D neighborhoods with high crime statistics, I have experienced all of the things that go along with it: 1) High turnover rate; 2) Tenants that don't care for the property; 3) Little/No appreciation in home value; and 4) High Crime Rate (burglary, vandalism).I am pretty tired of fixing broken windows, fixing broken doors/locks, and painting over graffiti.

Pick an area that is within a 2 hour drive or a 3 hour nonstop plane flight.Get in that market and really learn it neighborhood by neighborhood block by block.Local market knowledge is every investor’s competitive advantage.I do MF deals in Greenville SC where I live and already own 400 doors.

That means no HOA neighborhoods, which rule out many places.  3bedroom might make it tough to work, unless you're sleeping in the laundry or garage and renting full 3bedrooms. 

The house is a simple two bed one bath with a garage and a fenced in backyard.

How about going upstairs, knocking on their door and having a neighborly conversation to start?

The house hack is a wonderful strategy to lower the entry barrier into getting some doors.