I feel like maybe these markets are too saturated.

The newest outdoor is still advertising 1st month free as they haven't filled up, and I spoke with the climate controlled owner/builder yesterday (he's a pretty big REI in the area), and he made it sound like he hadn't leased a single climate controlled unit since they opened a few weeks ago.I recently purchased a 140x45 warehouse with low ceilings and had debated doing self storage, but my market seems very saturated.

And IMHO, the prices are dropping big time (on avg. 10K/month...houses that were above 300K a year ago are not selling at 250K now) and the available rentals saturation is worse than I seen during summer season (with rents dropping from 1$-1.08/sqft to 0.8$/sqft and very little contacts and applications...just go in Zillow and look how many rentals are on the market now in Kyle, New Braunfels or Converse). 

Investors might want to start exploring smaller cities or less-saturated markets poised for population and business growth.

Is there enough fat on the deal.  

As eric pointed out, someone who lives in Phila will have to be registered as a manager of the property to obtain a rental license - usually a PMPersonally if you're looking to target SFH I would recommend: Roxborough (for 3+ bedroom - there is a large saturation for 1-2 bed apartments in area), East falls, E and W Mount airy (need to be proficient in neighborhood to know where the good and not so good blocks are, and far NE philly.

But thelargest facility with 1/2 the business is 4 miles out of town bythemselves.c.There is a town that is Fully Saturated.

Spoiler alert- Phx is quite a saturated STR area, and many STR's (although some are doing great) are having major occupancy issues. 

You bring up a point about saturation in Tampa?

I view it as a tool in a toolbox to help you "trim the fat" off the bottom of your portfolio, so you can keep growing with new acquisitions.