If we assume all cash and a 50% expense ratio (this improve with time due to the near fixed property tax) would provide 4.8% return from cash flow not including closing costs).  0.5 (rent ratio) * 0.5 (50% rule) * 12 (months). 

Of course they complained, and I said that I would replace with a gas hot water boiler and a seperate gas hot water heat, so they would stay. 

And the cracks mostly follow the drywall seams from what I can see, which is typical....And as @Patricia Steiner said, it doesn't look like a pro installation....You could ask the Contr to use a flexible compound if this happens again, or maybe even now...https://www.dap.com/products-projects/product-categories/pat...Like everyone else said, I'd have it repaired - by a licensed Drywall Contr. - and then just check in on it.

Hey Andrea,  We purchase a single family 2 br on the west side 5 min from the airport and a popular hospital.

Your story resonates with me and my partners, as we too ventured into Detroit's real estate market, albeit on a larger scale, and have faced some significant challenges.In the early days of COVID-19, my partners and I invested in land in Detroit's vibrant Corktown neighborhood with the intention of building 42 townhouses and a 72-unit rental building.

If for no other reason, it seems that I’d have a much better understanding of pricing our rental in general and a good baseline to make decisions in the future. 

Quote from @Edward James smith: Hello, I currently own a single family house with an ADU, and a duplex.

A first time wholesaler doing a "subject-to" deal is highly likely to be working with a novice real estate investor who doesn't know what they are doing, and a highly irresponsible, highly desperate, likely elderly seller, who doesn't know what they are doing.

He's an agent with RE/MAX, one of the largest franchises with a great training program and a lot of tools for their agents to use and build a successful business.

Not likely), vacancy (@ 8% for me), and a possible PM (10% normally).I recommend you reach out to a local seasoned investor and have them run your #s with you, as the #s depend on how you manage it (how hands on you are) and also local pricing.