Only minor thing I would clarify is that your listing says there is off street parking but it is not apparent from the photos, nor mentioned in the description. 

Brighton Park, Archer Heights, and West Elsdon are solid neighborhoods.

Consider all the things that could go wrong and see if the lease addresses them: unauthorized pets or tenants, early termination, security deposit, lease violations, late rent, eviction, lawn maintenance, parking, etc.5.

But I want to cash flow more somehow in thousands  not sure on your capital funding for Miami but if you have the capital and backing I'd look at development for STR towers in the 50-100 unit range. you can get lots around 1.2 million that you can go 12 stories on with structured parking in Wynwood right now that you can build a 15 million dollar asset worth 30 million. you can do the condo exit or hold it as apartments and permit short term rentals. there are some great articles about short term rental occupancy. miami has 22 renters for every 1 available apartment and has the #1 net migrations in the state of florida for cities and florida is the #1 net migration state. it is land locked and developer friendly. it's under built.

It includes a 3-bedroom, 1-bathroom ranch house along with a private street hosting a small mobile home park with 5 units of which are owned by the seller. 

If you like the location long term appreciation-wise, and think you may be able to raise rents and create cash flow in the near future, and aren't concerned with cash on cash return/ the opportunity cost of having money tied up in these properties as opposed to putting it to work elsewhere... maybe your main goal is just a safe place to park your money... then you might consider keeping them or even putting more money into them so that they cash flow (refinance with more down).

"Our" project is on the road facing the national park, which is one of its selling points (i.e., there won't be development on top of "our" project).

Their rent helps to tremendously offset my high rental expenses (apartment rent, building storage fee, parking).

We mow our own lawn and the parking lot is usually plowed by the association that owns it.

Most of my clients purchase turnkey investment properties in areas like Old North, Merion Village, Southern Orchards, Old Towne East/King-Lincoln Bronzeville, Driving Park, North Linden, North Hilltop, Franklinton, Reynoldsburgh, and Hungarian Village.