If one or more units are vacant, the remaining units often don’t provide enough cash flow to cover expenses, making it harder to meet operating costs.Maintenance costs: A fourplex comes with four times the appliances, plumbing, HVAC systems, and other components to maintain, leading to significantly higher repair and maintenance expenses than single-family homes.If you want to see the detailed calculation, read this BP blog - More Units Doesn’t Mean More Money—Why a Single-Family Home Can Beat a Fourplex.Resale value: Multi-family properties have a limited buyer pool—mainly investors—who base their offers on CAP rates.

Last, you can do an unlimited amount of repairs to a home using a 203k renovation loan (up to the FHA loan limit), including knocking down the house and building a new home!

We do that all the time for inspections or to make repairs. 

Finding an agent, finding contractors, overseeing repairs, finding a property manager, finding tenants, etc.

Out-of-pocket capital improvements and repairs anticipated during the first year12. 

@Derek Buehner Repairs made to your primary residence while living there generally aren’t tax-deductible.

So there will be the cost of the inspections (not cheap) and the cost of the repairs.  

(@Jonathan Greene DM us if you'd like to chat about them)Regarding turnkey in Metro Detroit, haven't seen anyone do it the right way:( We've picked up dozens of their clients that fire them due to poor tenant performance and nonstop repairs on their "turnkey" properties. 

This was a few years ago, but at that time as I recall they were looking to do more long-term property leases over owning properties and doing pretty landlord friendly leases where they would do repairs and even pay property taxes. 

But what you will find is that most repairs are pretty easy - and if we don't want to mess with it we will call someone ourselves... but someone we know is going to shoot us a fair deal.