Hello City Lover. You should make an effort to revisit your mortgage rate situation, as mortgage brokers do not have access to special "capped rate" programs offered by the banks, to buyers of new construction homes/condos. As such, your interest rate hold period is a maximum of 120 days, whereas on site bank representatives can offer rate holds up to 36 months in some cases. Typically, however, the longer the interest rate is guaranteed for, the higher the interest rate will be, but given we will shortly be entering a rising interest rate market scenario, today's "capped rate", albeit higher than the current best broker rate, may seem like a bargain when your condo eventually registers.
Best bet is to hedge. You already have an exceptional rate, that is being held, but you would be best served approaching the on site lender and getting yourself approved under their capped rate guarantee as well. When the closing date eventually arrives, you will then have the option of choosing the lowest interest rate of the two.
As a broker in Toronto, I would gladly review your current approval for you and clearly define the terms therein ( I would not be looking to "poach" you from your current broker). By the way, Ms. Zanay is a registered mortgage agent registered with Mortgage Intelligence in Guelph and not an employee of TD canada Trust.
Congratulations on your purchase and best of luck.