Canandian Investors: Which banks allow more mortgages?

[Shaidah K.]

I live in Richmond BC, and have 1 investment property in Surrey (RBC), 1 in Sechelt, and 2 in Nanaimo (all 3 with Scotia). That means 4 mortgages and 1 on my primary residence.  I would like to continue buying properties when they make sense. Are there any recommended banks out there that will provide more than 4 mortgages that I can reach out to?  Any credit unions on the west coast or on the island? I am looking into private money as well but just want to see if anyone has some wisdom to share.  

Thank you!