I agree with @Joe Villeneuve and others here that METRO Detroit is an amazing place to invest (i.e. the suburbs) but I do NOT recommend the city of Detroit to newbie out of state investors. Start with the burbs and you will be good. you can still find deals in B and C communities that pass the 1% rule.
I had several properties in Westland and Romulus and had great luck managing them remotely. I sold last year for double and triple what I paid for each property but had great experiences for the 5-7 years I was invested in those communities. I had the same cleaning crew and handyman service all units for the entire 7 years and found the people/neighbors to be excellent.
In contrast, I also own and manage properties in ATL (where I live most of the year and also love) but am lucky if I can keep a cleaner or handyman for a year…the people I met in MI are next level loyal/reliable.
Focus on burbs that have modest but well built homes, decent schools, low crime, and easy to work with local govs within ~20 mins of the city. 3/1 and 3/2 are the sweet spot in terms of size. Should be able to buy for $120k or less (basically move in ready) and get $1200-1500+/mos depending on area.