You can find 1%+ rule deals just about anywhere in Detroit proper but that doesn't mean you should be buying them all. 

I don’t know the condition of the property nor how to properly assess it considering my lack of experience – who would I approach due diligence?

I have used Obie and Proper; I haven’t had to make a claim with either.

When dealing with unique properties like this, I would make sure that the ADU on this property is properly zoned. 

In a properly run platform, VRBO would require hosts to upload this information to the platform, and the guests would access the information directly from the platform, eliminating drama. 

Things such as location, condition, aggressive rent rate, etc affect how much work may be required to properly manage a property and its tenants. 

Can't even find a way to get in to assess the damage properly myself though.

The registration site still isn't working properly.

I am now looking to get the proper STR insurance on the unit.

:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+ (roughly 5% probability of default), zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680 (around 10% probability of default), some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.