However, I got caught up during creating my listing because it looked like I needed to have another account (Stripe?

Your list is more important than you realize3.

I currently have a pre approval and am shopping properties and am stuck on the deal analysis side of things.

For instance instead of having to stay glued to new listings, find the ones that show potential, then estimate rent, then put them in your calculator, then look at comps for ARV, then finally calculate offer price etc. 

If I were a guest searching for a National Park and my listing came up, I would be annoyed!

It gives you a list of all the assumable mortgages in your area.  

Most of the US real estate market has seen inventory continue to rise with a lot of relisting and stale dated listings, but Valdosta seems to be a “Great White Buffalo” (if you get the movie reference).

I did check Loopnet and it's all listed for sale by brokers and agents, so I don't think it is off-market -- right?

Who owns the listing if you use a PM? 

Now more than ever, I am seeing offers required to be submitted through a portal where the listing agents want no business being involved with up front negotiations.