The issue I find is that when I go to list my units, which are clean and moderately upgraded apartments in Little Havana and Allapattah I literally have 70 applicants in 24hrs via facebook marketplace or through the apartment rental platform my property management software interfaces with (like Apartments.com etc).So when I have 70 people lining up with first, last and deposit with no other middleman or agency impeding the process or requiring inspections or causing delays or requesting additional paperwork be filled out where is my incentive to go the section 8 route?

For multiple reasons, the types of jobs they work don't provide for the rising cost of living.In our market, there are more SECT 8 vouchers issued than housing units available. 

*there are some really specific issues that crop up here on BP such as foreign investors and using tax deferred accounts (e.g. self directed IRA's).Again, that being said...

Do not allow deadlines to float... the minute someone is late, start with the legal requirements even if you like them and believe it's a temporary issue. 

Common fees will include a set-up fee, a leasing fee for each turnover or a lease renewal fee, marking up maintenance, retaining late fees, and more.

Other than the cost associated with turning a gutted attic into livable space, what other issues may come up?

Maybe some sort of "white glove" organization exists, but doubtful.Also, it would be better to split it up for sourcing issues, just like hiring trades instead of general contractors.For example, it took me two years to find my agent. 

He did an inspection when I took out a load bearing wall and ran some new outlets and lighting circuits,  didn't have any issue with me doing all that myself.  

Perhaps it’s a health and safety issue? 

A 90-day notice to vacatewas issued to the tenant, as their lease expired in July.