However, there are downsides that should always be discussed, i.e. lower quality tenants, older homes, etc.

I been making calls to houses thats been on the market for 60days or more but nothing is working. is there anyone that is currently doing STR in the FL market that can give some tip where would be a good place to start and what I should expect. 

The multitude of foundation issues in the area on older homes scare me so I think your right to be conservative....

Can anyone recommend a reliable home inspector in Wickliffe KY?

This means it can take several years for the borrower to lose their home to foreclosure.

Does anyone have experience and want to discuss puting inexpensive prefab/modular homes (not mobile homes) on vacant lots?

Also, standard home products give 30 days for the dwelling to beoccupied :) Mycolleague is a great agent and he's in Utah!

As a second home, we have zero complaints in owning these properties. 

My ultimate goal is to generate $11K per month in passive income and I believe I can do that by purchasing 3 more single family homes in my area and paying off the entire portfolio.

Got a 2 bed 1 bath property in California that has a AC unit in the living room and a wall heater (older home).