Is there a way I can take on the current mortgage payments (at the low rate) and get a new mortgage to make up the difference between the existing mortgage and the current value?

Is this location within their sphere of competency or ability to low cost manage?

I would look for a bunch of Sub To Deals with 2-3% interest rates ...... then rent out for cash flow and huge equity build up when rates are really low (check out amortization schedules and compare 2-3% vs 6-7% with the same balance and length of time - check out the principal portion each month - the lower the rate the higher amount goes to principal PLUS better cash flow).

my property appreciation varies from a low of $2700/month to over $10k/month.   

I for one would dislike being pushed into a box, I'd prefer to choose my own stuff...and it really ain't that hard.Interesting concept though, I just do not see the value for a veteran Contractor or Imvestor.I'd ask for references before using them...

If you have a class C plus or maybe low B area, you can screen to select the best or top end of tenants in the program. 

I was really picky on choosing my first property, I was looking for cheap but nice and after waiting a couple of months and going to many open houses, i finally found this gem, I think I need to be pickier with my properties, so they can turn put Luke this one and cash flow.

The return on equity is probably very low considering they are paid off so maybe explore refinancing or selling the lowest performing one(s) or your biggest headaches to reinvest in more lucrative deals.I noticed you also used a metric of number of rentals to attain your goal rather than $$$/month.

If low wet ground check with people moving dirt for free fill dirt.

@Aaron Zimmerman HubSpot is a great CRM to use at a low cost.