Out-of-pocket capital improvements and repairs anticipated during the first year12. 

For my short term rentals I am really going to focus on adding improvements that will increase my daily rate and guest experience.

To improve your business going forward, it is important that you recognize how you created the problem.There are a portion of residents that if you give them an inch, they will take mile. 

Also, focus on 2 years of job/income stability.Class D Properties:Cashflow vs Appreciation: Typically, all cashflow with little, maybe even negative, relative rent & value appreciationVacancy Est: 20%+ should be used to cover nonpayment, evictions & damages.Tenant Pool: majority will have FICO scores under 560 (almost 30% probability of default), little to no good tradelines, lots of collections & chargeoffs, recent evictions.

STR without ownership is basically a STR PM job for you.  

A strong “Core 4” can make managing your investment remotely much smoother and prevent a lot of headaches.Also, as you narrow down cities, pay close attention to factors like job growth, population trends, landlord-tenant laws, and short-term rental regulations.Happy to connect with you, and good luck as you jump in!

This could improve your margins.Occupancy Rate: A 60% occupancy rate seems low for Jax Beach, but that is a reasonable conservative baseline. 

I agree with @Jonathan Greene that the question is vague, so my advice will have to be as well.The short answer: MTRs are real estate, so just like all real estate, any place that can long-term-rent cash flow with increasing jobs/population can be a suitable site to purchase. 

I’m returning to the U.S. after spending a few years overseas, and I’m eager to start my journey in real estate investing.Once I’m back, I have a job lined up with a wholesaling company where I’ll be focusing on buying houses.

If you aren't able to save for your next property, then you really need a better job because without this house you'd have even less money.