Collocations for liaison - noun

close, effective, good
poor
community
a community liaison officer (= for example in the police)

customer
We hired someone as customer liaison. (AmE)
a customer liaison manager (BrE)

military

maintain
We maintained a close liaison with the union.

establish (esp. AmE)
We are hoping to establish good liaisons with these groups.

improve

committee, group, team, unit
officer
work

in liaison with
It's important that we work in close liaison with other charities in this field.

liaison between
good liaison between management and staff

liaison with
She is responsible for the liaison with researchers at other universities.

romantic, sexual
adulterous

have
She was having a romantic liaison with her husband's best friend.

liaison with