I recommend a simple spreadsheet to check your math and it will make it simple to adjust each year.End the complaints.

@Maurice Evans do the math on how it affects your ROI!

Simple math would be a PITI of 1,000 and rents of 1500.

I do not meet that requirement, but before I gave up on the area I did some homework and found a cleaning company that is willing to act as the agent.  

That’s another things I’m not super clear on is running math for number after refinancing and what to calculate.

- Is the simple CoC return math here 4800/1800 = 27%?

This is a math problem.First, the only cost to the REI for a property is the cash they spend. 

With $50,000 in your market, instead of buying just one appreciating asset, why not buy 5 houses with 20% each (or where the math makes sense).

My back of the envelope math is following:$600k upfront purchase (for simplicity sake, assuming no mortgage)Expenses: $6k annual tax +$4k annual maintenance/upkeep +$3k annual utilities + $2k annual insurance for property and liability = $15k annual OPEXIncome: $1.5k per week in summer and $1.5k per month in winter (after deducting PM fee)16 weeks in summer (assuming 80% occupancy rate, allowing me or my extended family to use it when it's not booked) and 3 months in winter (assuming 50% occupancy rate) = $28k total annual incomeGross profit = $13kROI = 2% 2% return will probably make most people run away screaming, but for me, it's not a bad deal.  2% is about the interest rate I can get from a long term CD, but I also get about $10k worth of usage out of the house which is not included in the calculation, nor is the potential appreciation.In other words, for somebody like me whose primary objective is asset diversification, a house is a better choice than gold coins.  

Trust me, I've done the math. ;)