Phone is only for emergencies which is generally temperature, fire or water related problems.

Request that the new tenant and existing tenants all take temperatures daily.

The peak of STR activity is the festival season, as you correctly noted, and the demand for STRs does a slow decline after that, as the transient population returns to their main residences around the country for summer, and as temperatures start to go up dramatically here in the desert.

Note; paper underlayment will be cheapest, but it's cheap for a good reason, and it's not its robust life expectancy...The strapping you mentioned is a slight added cost, but if done properly (vents at the eve/drip edge and ridge), can actually help lower inside attic or top-floor temperatures, as you now have an "air gap" to help alleviate some of the penetrating UV heat, as well as helping to drain and dry condensation that WILL form on the backside of a metal sheathing.

Emergency is only for fire, flood or temperature emergencies.

Like Kasey said, we don't really get bad weather down here besides hot temperatures.

If you see a falling inflation adjusted per capita income, you need to carefully consider the long term risk associated with buying a property in that location property.MaintenanceSome of the major factors for maintenance are:Age of the property - the older the property, the more maintenance it will require.Climate - Moisture and temperature are both major factors.

It uses ambient temperature to sort of "reverse" the cooling process to produce heat. 

Indeed, while there are indeed more foreigners buying property there as they're getting priced out of other places in the peninsula and/or they're being sold a nice story, Progresso is essentially the beach town of Merida's elite who flees there during the summer as the temperature and humidity within the city becomes unbearable.

Am looking for a current temperature check on whether Carlsbad is currently (and in the short-term) friendly for STRs in general.