Ask the agent directly whether they have closed a purchase using either program before, since the timing of an RRSP withdrawal or an FHSA contribution needs to line up with your condition dates and possession, not happen as an afterthought once financing is already condition-free.
Your agent should also be honest that these programs are withdrawal and savings tools, not cash grants, so the amount you can access depends on your own RRSP or FHSA balance and contribution history rather than a fixed amount every buyer receives.
The right agent treats your down payment source as part of the financing plan from the first conversation, not a detail to sort out later. Get your hand-reviewed valuation from Joel Dyck.