Wondering what, if anything, I could do to spruce up the place to make it more attractive to a potential tenant OR if there are ideas of what I could personally do to it that would create some nice cash flow for me (co-working spaces, etc.).

We look forward to hopefully working with you in the near future, and please let me know if you have any questions I can address in the meantime.Right now is an excellent time to secure very attractive long term financing.We look forward to building long term business partnerships with you!

Ultimately our main goal build a portfolio of multiple different types of investment properties, buy and holds, rental properties, and fix/flips; but the wholesaling side of real estate seems like an attractive venture as we are just starting with little capital and it could provide us with a revenue stream to become a cash buyer. 

The city's strong rental market ensures a steady income stream and with affordability and a median home price below the national average, the city stands out as an attractive option for investors seeking a promising return.

Army, attracting a steady influx of PHD education people.Houston, TX: Houston's diverse economy spanning oil (used to be just this), healthcare, and technology provides a robust job market that supports housing demand.

For that to work you need a property that appeals to both kinds of guests and a community or location that not only has a higher number of homeowners, but attracts a lot of visitors as well.

How can I take advantage of this attractive 2.75 interest rate, without coming out of pocket $100k?

It can be seen as a unique amenity that sets your property apart and attracts potential renters.

Even with a fence, I wonder if one could argue the bridge isn't an "attractive nuisance" because what child wouldn't want to play on that bridge even if they needed to climb a fence to do it. https://www.law.cornell.edu/wex/attractive_nuisance_doctrineSo, I would either remove the bridge while its a rental or add the the railings.

Ohio as a whole is a very landlord friendly state and is one of the most attractive markets in the U.S. for out-of-state investors.