Industry observers point to credit unions buying banks, note that Boston conversion involves unique state charter.
Regulatory hurdles remain after Boston credit union's members approve change to co-operative bank charter.
Boston-area credit union founded in 1917 now to make move to mutual co-operative bank charter.
Members will cast their vote Monday on whether to convert the $1.8 billion HarborOne CU in Brockton, Mass., to a mutual co-operative bank charter.
Special meeting date falls 13 months after Boston-area credit union first announced its intentions.
Suburban Boston credit union says board gave go ahead Thursday night.