Now it is falling apart (from roof leaking to plumbing), the tenant is not paying on time and it is affecting our credit.Im afraid for it to be vacant because vandals may have their way and finish it off...

Has lots of upgrades and no near future maintenance such as roof.

I have replaced the roof with 3D shingles, the windows, wrapped the entire home to make it maintenance free and working on the interior now.  

Last thing you want is a health/animal abuse situation under your roof. 

The charm of not worrying about exterior maintenance (lawn, roof, plowing, ect.) has its weight as well.

The roof and exterior paint are about five years old and the interior of the house was re-painted this week.

Here are some reasons I like MFRs:The price per unit is less, leaving more cash flowone roof to replaceI do the PM, so finding agreeable tenants is no problemI've found location to be the driving factor on desirability (not SF versus MF)Getting in good with one tenant will give you quick and easy updates on the status of the rest of the tenants / buildingReferrals for new tenants from current tenants are more frequent (they want to live near their friends) get a good tenant, and get a good referral.The cons:Resale is slower.

It is a brick flat roof duplex and a single family home both on one lot.

We also didn't have to deal with externals (landscaping, exterior painting, roof, etc).

New roof, new hot water heater, etc.