Ahhh….never mind then.That's smith manoeuvre. Norberts gambit is a way to save on currency conversion. Your house is not involved in any way.
Someone even published a step by step for questrade for you.
Norbert's Gambit with Questrade: Step-By-Step Guide (2024)
Norbert’s Gambit is a technique that many Canadian investors use to cheaply exchange between CAD and USD. Here is a step-by-step guide.wealthsavvy.ca