@Teal PriceIF you want to go back into any kind of investment real estate - 1031 is the answer.If you don't want to be a real estate investor anymore but can be patient - then sell, 1031, buy a nice house, rent it for a year or two and then move in as your primary residence. 

Where I need advice is - my primary home is fully paid up so I have a good amount of equity, should I pay for the rental property completely using my home equity or should I only take the down payment from the home equity and get a mortgage on the rental?

Currently uses Windows Desktop as primary computer.

I am currently doing a rent to own in my primary residence, and I’ve been living here for the last 3 years.

There are actually over 100 platforms and thousands of funds, and fully analyzing even one is too much info to put in a comment. 

With regard to your price point, if your primary goal is cash flow, you don't even need to going that high.

My primary interest here on BP is that of becoming a flipper/rehabber; I love the idea of taking something less ideal and making it beautiful for a family to live in and make great memories there.

This will not be an investment property, this will be used as primary home.

My goal is to invest in a multifamily (4 doors or more) and this may be possible by selling my primary residence or HELOC.

I am the primary money investor, deal finder, deal analyser but also have a secondary money investor.