If you're in that situation, ensure you follow proper procedure and proceed with that option in conjunction with your eviction process to have redundancy.

I completely understand your concern about potential vacancy issues, especially when it seems like there are so many rental options available in the Philadelphia area.However, not all areas are created equal when it comes to rental demand.

Do you have the option to move back into it for another year? 

You're not necessarily paying more to go with one option versus the other.

Works really well (I used the CSV option) - but the Stessa import tool does not bring in the GUEST SERVICE FEE from the Airbnb transaction.

You can offer options like reduced rent during disruptive repairs instead of relocation; simply as a courtesy, but absolutely not required. 

Do you rely on specific data sources, gut instincts, or perhaps a blend of both?

Does anyone have any ideas on how to minimize that tax liability and still continue with my original intent, or is my only option a 1031 (I'm aware of DST but don't see that as a great option).  

I agree with having multiple options / viable strategies.

@Sandeep K MamidiTo flip properties effectively, use market knowledge, research local trends, and innovative financing options like private money loans, partnerships, and syndicatation.