You are going to pay top dollar for new construction, but it has several anomalies that will restrict your future value.

To the west is also popular, like Pooler, but I'm not familiar with regulations.You could do Mid-Term Rentals, 30+ day anywhere for now.You could house hack and from what I understand, there is no restriction if the unit is owner occupied in some form.

Lots of cities are restricting STR’s so make sure this home is not one of those areas.

Agreed the odds of them wanting to resign after the renovations that would substantially increase the rent is low. 

The productivity of OR STR's is very consistent and growing due to the barriers of entry of restrictions in other coastal towns.

(d) Easements of any kind, including prescriptive, constituting servitudes upon or burdens to the property; water rights, the record title to which is held separately from the title to the property; and restrictions of record.

(Ps what are the odds it’s the rental you would buy if you didn’t already own it?

That might help in determining the price.I have noticed that tenants in this price range don't care as much about new construction because of budgetary restrictions.

They restricted short-term rentals to one guest per month, then they said only one guest every 90 days.

Grab a cup of coffee and do a deep dive.https://www.stlouis-mo.gov/nst/documents/inforent.cfmI would also check to see if you are in an HOA and if they have any restrictions.