RW or any other experienced commercial real estate brokerage will be a good sounding board for your plan and may have some ideas that have not occured to you yet. 

Sounds like you may need a new fridge - the city isn't issuing a citation because the tenants are dirty, they are issuing a citation because they suspect there is an underlying material cause beyond use4.

However, getting to know the areas first sounds like it would have a future payoff. 

“Cleaning fees” can’t exceed 10% of rent (though it sounds like prepaid cleaning fees?

Video Tours and Live Streaming:  Offer live video tours or virtual walkthroughs of the property, allowing out-of-state buyers to view the property in real-time and ask questions remotely.Combining these methods, sellers can effectively market their property to buyers in different states, maximizing exposure and increasing the likelihood of a successful sale.  

Get your paperwork ready and get prequalified - start by having coversations with lenders and ASK ANY QUESTION you have (don't worry if you think it doesn't sound "smart") so that you get familiar with language terms and common questions they have.

Hyper focus on one area and get to know as many people there.The reality of "off market" deals are not as beautiful as they sound.

I prefer to swim in less crowded ponds and Fulton or Dekalb sound packed.

Sounds like an interesting park with potential. 

Sounds like amateur hour to me.