In fact, just finished one that I have yet to put on the market. 

If it is only one flip for now, I suggest you find a CPA just to advise you on State filing requirements, ensure you are claiming all write-offs and issuing 1099s, etc.

If you can find one its Millions of dollars since those types of spaces ar3e close to beaches here. 

2) You have one rental now, what's your goal of buying more?

I'd bring island out a little more. my advice is make sure all rooms are 110 sq ft minimum. some of these look super small. we build a very similar one in our market.

on the one hand, if you're happy with it, and you believe in this market, and this is what you wanted, great. the fact that you're asking the question shows that you're being thoughtful about it.with that said, it sounds like you're into the deal for almost $90K out of pocket, and so if you asked me if i would put $90K of my hard earned cash into a property to get $175 month, the answer is no. 

I bought the 9 properties within the first 2 years, but haven't bought one since.

One option could be using the equity in your business rather than cashing out entirely.

Fixing and flipping real estate has become one of the hottest ways to build wealth.

If so, you may be able to wholesale the property to someone (perhaps even someone in one of those $400,000 houses) in such a way that you and your grandmother come out whole.