If the new buyer decides to back out of our assignment contract, I am still contractually obligated to fulfill my original contract with the seller.

As a realtor working with investors in an "expensive market," how are you helping your clients fulfill their investment needs? 

., so I do trust that she has fulfilled her end.

. :)I certainly wasn't advocating for legal threats, rather, its her obligation to fulfill the contract or make a concerted effort to mitigate, e.g. subletting.My second post -- after seeing advice from others -- was finding a middle ground.

On one hand the tenant has a contract to fulfill.

That also fulfills your goal of doing the right thing---other things are be transparent, mindful of others time and goals and prepared to close :)

Positivity also translates into greater creativity, productivity, and fulfillment.

Our Galveston TX str has had a slower than expected launch. 5 reservations since launch, and 3-4 other inquiries we couldn’t fulfill for one reason or another (usually too many guests and / or prom parties; don’t want to be too bad of a neighbor and let things get out of hand). 

A not and deed of trust...yes, title is passed, a CFD doesn't pass title until the contract is fulfilled in the future, a special agreement for commissions is then needed. :)

A lot of people just say I can't afford to do it, and end up living out that self-fulfilling prophecy.