I'm hoping to narrow down a couple markets and spend time learning their by-laws/zoning through and through.

About classes Detroit is a street by street city not necessarily by class you have class B and a block away is a war zone so you do need boots on the ground for sure DM me or Travis and I give you some guidance but going solo is a little difficult partnering up would be a little easier and less risk but again up to you. 

How about narrowing down the specific area and getting on the horn or looking up the HOA info?

I've been interested in New Haven because theres a bit both B and C-D neighborhood. there are some ghetto parts which like I said I'm fine with I grew up in some rough parts of NYC mid 90's I know how to handle my self in these area. and as long as I'm thorough and diligent with my screening/vetting process in tenant selection, I should be able to find decent people to make my tenants. there is huge working class in New Haven and its seeing slow stead growth. 

Any possibility of getting a narrower range of the cost of remediation? 

What does any of the above have to do with local Brooklyn Landlords/Property-managers banding together to collectively hire a roaming part-time Super to help out?

In the case of flippers the underreporting is in case they need to resort to plan B and keep the property longer than intended (rental). 

An area can be turned around to a certain extent if property owners band together.

I would be happy to give my insight as you get it narrowed down.

While these are a great revolutionary option – typically Multifamily DSCR Loans are only available for this narrow band of unit-count, generally 5 to 10 units, or sometimes 5-8.