I think there is a culture there that is more geared to an AirBnb mindset (just a hunch). 

This is because if it only had 1 death in a 3 block radius, that could easily be an isolated incident and not a real cause of the daily life and culture of the street. 

Seems like it’s becoming quite a little cultural hub.

I am not very familiar the the cultural issues regarding people on boathouses (haven't met any) but if I was on a boathouse and someone called me with a good investment opportunity, I'd be glad to hear about it.My concern with your call and your post is that you are still approaching it as if the guy is doing you some huge favor by letting you invest his money.

It's a lot safer now and is coming up strong thanks to it's close proximity to the 'Lincoln Park Cultural Arts Historic District' which is a block east of it.

Duplexes are culturally a Southern property type.  

BeeKindred Culture Investments LLC

Detroit is more of a city that you have to learn the culture and areas street by street.

Two new characteristics of the market that for me seem to be wild cards are  1)  REITS that buy and hold SFRS, and 2) Foreign (mostly Chinese) money buying properties.  

IMO violence in the media and therefore in western culture, along with other social dysfunction prevalent in society today, is a huge and unspoken part of the problem.