That being said my residential rental will have a positive cash flow of $500 and I plan to rent out this other side of the duplex immediately and will have a balance of 600 to cover for the mortgage.

I'd like to accumulate enough properties to cash flow 6 figures, which would likely be a 20 year plan. 

While I don’t plan on flipping the house, I intend to use the property for short-term rentals (STR), and based on my research, it seems like it will perform well either as an STR or a long-term rental (LTR).Any ideas on how I can source the financing or recommendations for better lenders would be greatly appreciated!

What is the audience and goal of the marketing plan?

I'd talk to your broker on what it'll sell for after the fact and where the market is heading over the time you plan to own it. 

If your planning on listening to keyboard warriors on here to explain the process, you're gonna get a lot of bad info...some good, but some bad.

The plan is to acquire a tier 3 license.

If you plan to build your own primwry you absolutely want it to be your primary first not investment land first.

.⚾ Franklin Yards-Gastonia- A $26M, 5,000-seat multi-purpose sports and entertainment venue, with future plans for residential, retail, and office spaces.🍽 Food Hall-Gastonia-Gaston County’s first food hall is in the works!

CT isn't cheap so if you plan on doing it there you are going to surprised at how poorly you do. maybe in the suburbs I'm not sure but as much as I know people call us from CT and everyone is rich and has lots of money and things are expensive out there. build to rent is a great model. we build 3 story walk up infill and keep it to the residential side. 3 units is the most units before it's commercial and you need engineering, etc. check comparable and things liek that. we came up with this design a year ago and we sold 10 if you want to talk further please DM me happy to connect. there are some great build to rent conferences. we went vertical not horizontal with it to save on build costs and design to fit on any infill lot. this fits on a 3500 square foot lot. most lots in our area are 30x120 or 30x150. in miami where I live now they are 50x100 or so. but any infill lot we can pretty much get this one on. there are some great build to rent conferences coming up too that if you like this topic I'd recommend attending I'm sure you'd learn a lot.