If he owes a decent amount on the property, wouldnt the conventional route make him lose whatever interest rate he has?

If you don't you will lose a lot of money with evictions, lost payments, and vacancy.

See below:Survey (8-10 weeks) Request Permit Prints from Design Team (4-6 weeks) Site Plan and Septic Design from Design Engineers. (6-8 weeks) Need survey back to start designs as this is site specific Energy Docs (1-2 weeks) Need plans from Design Team to make request.

If you go this route, make sure there is a very very very wide spread because it's so high risk and easy to lose.

Does anyone have any advice about glamping sites?

At this point in time, I’m losing money.

As with any electronic item they can fail, so I keep an extra new lock on site at each property for maintenance to install if needed. 

@Hector Haro there's no helping someone who pinches pennies while losing dollars.

I've seen investors lose tens of thousands every year before they finally get serious about learning how to manage.

They list properties on their own site, plus Airbnb, VRBO, Booking.com.