NEW YORK--(BUSINESS WIRE)--Kroll Bond Rating Agency (KBRA) has assigned a senior unsecured debt rating of BBB+, subordinated debt rating of BBB, and short-term debt rating of K2 to Bankwell Financial Group, Inc. (NASDAQ: BWFG), a bank holding company headquartered in New Canaan, Connecticut. In addition, KBRA has assigned a deposit rating of A-, senior unsecured debt rating of A-, subordinated debt rating of BBB+, and short-term deposit/debt rating of K2 to its subsidiary, Bankwell Bank, a comm