Robert McLister·General·October 29, 2010Monoline Lender A “monoline” is a mortgage lender that focuses just on mortgages. A monoline lender does not have other products it can cross-sell, which differentiates it from a bank or credit union. Most monoline lenders securitize their mortgages, instead of keeping them on their balance sheet. Like news like this?Join our CMT Updates list and get the latest news as it happens. Unsubscribe anytime. SUBSCRIBE! Thank you for subscribing. One more step: Please confirm your subscription via the email sent to you.