Please remember me to all your family.
Go kazoku ni yoroshiku.
honorific/polite/humble prefix; honorific suffix
family; members of a family
at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although
well; properly; suitably; best regards; please remember me; please treat me favorably (favourably); please take care of; just like ...; as though one were ...; by all means; of course