Many companies do not like Habitational (apartment/condo/co-op) risks so agents that specialize in your situation may have more of the competitive markets.

At one point I hoped to scale the concept further, maybe bring on VC partners, but learned rather quickly that Co-Living is just not a viable means of habitation outside of very brief stays. 

There are many resources available that cover various aspects of the real estate market, investment strategies, and financing options.Attend local real estate seminars, workshops, and networking events to learn from experienced investors.Build a Strong Financial Foundation:Focus on building good financial habits.

I’m not 100% sure if I’m the future that area would be able to become habitable though.

Dont make a habit of buying rentals in flood zones, but if the numbers work....and you arent planning to hold the property forever. 

Credit unions MAY not want to lend on properties that aren't habitable - while HMLs make a living on doing precisely that.

If you create additional 'habitable rooms' by enclosing the rear porch then you'll need them to be supported by a code compliant foundation and not just on the existing 6x6 porch posts.

We don’t know any PMCs to recommend in the area mentioned, but since selecting the wrong PMC is usually more harmful than selecting a bad tenant, you might want to read our series about “How to Screen a PMC Better than a Tenant”:https://www.biggerpockets.com/member-blogs/3094/91877-how-to-screen-a-pmc-better-than-a-tenant-part-1-services-and-processesWe recommend you get management contracts from several PMCs and compare the services they cover and, more importantly, what they each DO NOT cover.

She is likely smart enough to not want to stay on the mortgage with him for the next 20 years as it could harm her credit or make it impossible to buy a property.

No harm no foul.