Unit count is generally irrelevant for this question.

When I go to get a loan or refinance, a bank will see that I have been producing this rental income for several years and that it is part of my overall income, which makes them more likely to work with me on financing a new rental property by counting 75% of the potential rental income into their calculations.

I am counting on my rollover IRA to fund the downpayment, and now it's game time to get those funds available as cash in hand. 

If you are the biggest investor in the deal, and you don't pay, then that could cause a bigger problem since the syndicator was likely counting on your cash call and will now need to fund it himself, assuming he has funds. . 

For example, if, in an 18 hour waking period, you spend 2 hours snooping through the AirBNB, writing down the makes and models of appliances, figuring out the distribution of the mini shampoos and inventorying how many cooking supplies your hosts are providing and the thread count of the sheets, then an auditor might allow you to take 10% of your total trip expenses as a deduction.If, however, in an 18 hour waking period, you spend 6-8 hours per day interviewing Hosts, researching which properties would make good AirBNBs, researching the local laws, touring properties, meeting with an agent and vigorously pursuing your next acquisition, you'd have a MUCH better case for writing off your travel expenses (but probably not your lift tickets and equipment rental).If, on the other hand, you are traveling and on vacation and just hang out in your AirBNB without actually performing any activities, then the odds that an auditor will allow any deduction at all is pretty minimal.In any audit, it would be up to you to document the business purpose of your trip.  

Maybe only a couple hundred dollars, but it does count.

Also if it's currently occupied then you can perhaps count 75-100% of the income towards making the debt service payments but check with lender because I'm no expert on this!

If your total monetary losses can be counted using "hundreds" I'm betting it won't be worth the fight to recover.

From there, you can cross-reference (I usually have the main corner streets and count how many in it is from there or something similar.)I've attached a pic of one as an example.

The only claims that count against you as an owner and will get you dropped are 2-3 non storm related claims made in 12-24 month period depending on the Insurance carrier.