I've seen some as low as 6k and as much as 14k annually.

We have a large salt water spa and your salesperson is wrong about the maintenance.

If you can rent it for $2,000/month, after fees, taxes, and potential maintenance costs, you’d still make a decent passive income.

Went a bit heavy on the annual taxes due to the increase in the area the past few years.

So no leasing agent, no maintenance. 

Things have to get much worse for insurance rates to continue to grow at 10-15% annually in perpetuity.  

Each night of the week has a different price based on market trends for short term stays, not annual leases. 

You came along last year and bought the property for $300,000 as an investment property.So in year one, your taxes were based off the previous owner's purchase price of the $100,000 plus any annual tax increases since they owned it.  

Cash on cash describes how much cash a rental property is putting in your pocket on an annual basis divided by the cash you took out of your pocket to buy it. 

Taxes have to be paid, so does insurance, what about maintenance?