I also follow their guidelines that if I am getting booked up really early then I raise my base price a little at a time for that listing until my 30 day vacancy rate is 40-60% And if my 30 day vacancy rate is higher than 60%, I drop my price slowly until it is hits the target 40-60%.I typically only check these about once per week and my numbers have been in line unless something is happening like the current situation, then I just tweak the numbers daily until the listing is back in range.ThanksBernie

Maybe he will have to spend $15,000 to fix it up, but he may lose that much in vacancies before it is filled up again.

The economics are exciting, but RV pads should be underwritten differently to account for increased vacancy, turn expense, and ultimately, a higher cap rate.

As far as the rental analysis:10% Vacancy is pretty high for a SFR.

This means the NOI the property generates (all income less vacancy and expenses with the exception of debt service) has to cover the total debt service (including any seller notes) plus 25%. 

If you're already under market, the land lord may be happy to take his chances with a vacancy in the hopes the next tenant will be at market.

@Hector Naranjo I'd suggest even before paying for any tools, Create an excel spread sheet that factors in all of the expenses i.e. repairs 5%, Capex 10%, Vacancy 7%, Taxes(get from assessors site), Insurance(get quote from broker), management 10%(even if you are self managing), landscaping/snow(depending on market) and utilities. 

We currently manage 18 unfurnished annual rentals in Vero Beach and rarely have a vacancy for more than 1 month.

Only thing I’ll be paying for is really lawn care and saving money for other stuff in the future vacancy , repairs and so on .

- Assuming with numbers like this if accurate that the house is not in the best area make sure to bump up your numbers for vacancy, eviction, turnover, monthly maintenance, capex, etc.