They WILL give you 1% for transferring in business such as RRSPs of at least $15K, up to a maximum of $1200 ($120K). RESPs do NOT count towards this particular bonus. This can help you to subsidize the cost of your legal fees, which other institutions may pay, depending on what you worked out with them.
If you are in the market for a mortgage, just go into your closest HSBC branch and sit down with a rep. I'd appreciate you mentioning that Steven Kastner, who signed up for an account and mortgage with Shelly Li from the Yonge & Clark branch in Thornhill referred you when you open up an account with them (free, and a place for them to put your transfer-in or any other bonus).
Click the link in the pic above to go to the HSBC website.