No you don't need a license for those jobs.

Or maybe one that's move in ready, whereas most of the others need work.

As Michael mentioned you just need to respond to the IRS and state this is what you're doing.

I'm curious, how much rehab work did you have to do on this property? 

Too much effort and too much risk for the OP.  

Most are very much on the market and subject to bidding. 

I've used the search feature on this forum but didn't have much luck.Are there any US investors, hard money lenders, or groups that invest in flips outside of the United States, specifically in Europe (Netherlands, Spain, etc.)?

Can I submit these plans or does it need to be done by my contractor?

The 10 cabins is a commercial property and would be financed as such based on revenue so comps don't mean as much.

You have some, but not as much as you think.