Check out other listings and what they are charging, how do their calendars look, etc also check out the permitting 

If a property is purchased and renovated to be a short term rental in the same calendar year, how long does the rental need to be active in service (i.e. on Airbnb) to qualify as a short term rental for the short term rental tax loophole (putting aside the material participation  and cost segregation study that are also needed)?

I was notified of the approval and was provided the sale agreement on the same day - this was calendar day 25 following the end of the online auction. 

Boom. * Airbnb On airbnb.com go to Host and select CalendarClick Availability settings in your calendar viewUnder Sync calendars, select Export CalendarCopy and paste the Airbnb calendar link into your iCal applications** VRBO In your reservation calendar, click the Import/Export arrows iconClick Export CalendarCopy the URL and follow the instructions on your external calendar in order to importYou're welcome :)

If you are the successful bidder and purchase the property and IRS decides to redeem the property within 120 calendar days, IRS will pay "amount paid by the purchaser calculated at 6 percent per annum from the date of such sale".

Every person who tells me they're making a killing, then I look at their booking calendar and they seem to have a couple of weekends book for the next two months and lots of weekdays available.So I would look at some of your competition to see how full they're staying.Of course one shot in time is not 100% accurate...maybe everyone tends to book same day or last minute, so looking a month out you would not see bookings.Hotels and airlines seem to want about 80% occupancy, apartments around 95% occupancy to stay profitable.   

I have marked my calendar.

It doesn't necessarily have to be 21 different exchanges each with a different calendar as in a regular consolidation exchange.

You would have to wait until the end of this tax year and would have 180 days from the end of the calendar year or fiscal year end of the business to re-invest.

Also, make sure to put a calendar reminder for the annual $800 FTB fee!