Then get a purchase investment 30 year fixed rate mortgage on the investment house(s).

I'm in the middle of creating a business model, defining my business, and doing all the leg work to secure financing for it and what not. 

From what it seems you are saving capital to purchase your first flip wholesaling, is the best way to me because that's exactly what am doing building a brand and capital to fix n flip also, buy and hold.   

I continued to look for investors everywhere I went. at street fairs, through my small network of home owners and business people, hosted seminars on finding and doing fix and flips and built up a group of investors who encouraged me to find them development deals. 

Keep in mind  Jacksonville is a different scale of magnitude than other cities.   5,980 Roof  2,350 Siding repair2,950 Ext paint 350 Screen replacement 180 Window screen600 Hot water heater 500 Appliances used 135 lights 450 Bathroom repair2340 floor 1800 floor 1300 carpet in bedroom 375 electric150 smoke detectors350 Ceiling repair 250 Touch up paint 200 Misc caulk 100 sink 125 garage fix 375 plumbing repair 175 Window    21,315 total 

On the other hand, another expert thinks it would be cost prohibitive to find and keep good tenants, even if I fixed it up completely to current standards for the area based on the location. 

I’m a fix and flipper in Colorado.

Based on the Sq ft $, once fully fixed up would be worth about $80k.

I have heard of this model being used as a risk management strategy (keep no money in the PM LLC and if you ever got sued over a PM issue hopefully your agreement between your LLCs shelters the Property Owning LLC (and the equity in the properties) from the burden of the lawsuit. 

It mostly depends on your goals which model you should join.I'll send you a PM.