If you list your space on other websites, you can prevent multiple guests from booking the same dates by syncing your Airbnb calendar with your other calendars.Calendar importingCalendar importing allows you to automatically keep your Airbnb calendar up to date with an external calendar that supports the iCalendar format, including Google calendar or the calendar on HomeAway or VRBO.To import a calendar: On airbnb.com go to Host and select CalendarClick Availability settings in your calendar viewUnder Sync calendars, select Import CalendarCopy the URL for your other calendar into the Calendar address (URL) fieldName your calendarClick Import calendarIf you edit an external calendar that syncs with your calendar on Airbnb, it will take a few hours for those changes to be visible to guests viewing your listing.Calendar exportingCalendar exporting lets you view your Airbnb calendar on an external calendar that supports the iCal format.

The hard money lender will still analyze the deal but they are more concerned on the refinance step to make sure you are good. 

What's the address? 

I suppose this could happen with any seller regardless but I am also concerned given his age and ill health, what if at the time of purchase his interest in in probate or held by surviving family? 

What is your specific concern: the smell will bother other tenants (if multis) or that it could turn into some sort of drug lab?

If they're concerned I'll lose some or all of the account value at the same time as I default on the loan, they could roll the contribution money into an identical account at their institution where the only investment option is cash (or whatever they consider safe enough). 

The plan is to blast these addresses with yellow letters consistently for about 6 months and start getting deals from there.

I am concerned that because of my age and lack of money I will not be taken seriously by banks when trying to secure a mortgage.

Hi there, I am a new investor working on my rehab quotes. I am currently working on a property that has sloped floors on both the main floor and basement. Same side of the house but not sloping in the same direction. ...

If your PM is not licensed and/ or using this agreement that might be a larger concern.