As long as you are willing to testify in court that what you verbally agreed to was not to back out and you have a written contract you should be golden as long s the title company is still holding your earnest money. 

All in all, house hacking is the golden footstep when it comes to getting into flips/investing in off market deals.

You should be golden no matter what they do.

Use excel or quickbooks or management software to keep books for each property and you will be golden.  

If an amount is filled in with the proceeds then it is reconciled by your accountant on the form 8824 that is filed by your accountant for the tax year of the exchange.What is a golden opportunity for you now that your QI hasn't told you is that you would prefer $0 because that could allow your accountant to report this as an installment sale in 2020 if you can't complete your exchange.Your exchanges are commencing in 2020. 

I'm the property manager for 196 units in Golden, Colorado (just outside of Denver).

You gotta wonder, unless it's part of their business model, why would an investor sell a "golden goose" or a property that's fixed up, rented, & performing well? 

Continue to feed your mind, pickup golden nuggets everyday and Listen to podcasts about real estate(Wholesaling Inc, Millennial Real Estate Investors, Real Estate Disruptors) and join facebook groups geared towards wholesaling, Cashbuyers and fixnflip, virtual wholesaling etc

There's also a non-residents speculation tax in the Toronto and Golden Horseshoe area.

The only conceivable circumstance where a HM lender might be enticed to make a loan on those terms is if what is presented is a golden "loan to own" opportunity.