The lack of a solid connection is basically accurate.
When I was arranging banking here in RD at ScotiaBank, I had my Cdn branch give me a letter if introduction which was helpful.
They also gave me contact names so that my meetings were pre-arranged instead of walking in cold.
I found it all very easy with the introductions and planned schedule. They arranged for an English speaking representative to meet with me.
Yes, the wiring of funds is arm's length-so to speak- but the interaction between related companies makes problem solving easier.
Arranging mortgage - if needed - can be done by the Cdn bank assisting by providing necessary backup info to the RD counterpart
WW