lawyer-client relation vs attorney-client relation

lawyer-client relation and attorney-client relation both are nouns.

Word	Noun	Adjective	Verb	Adverb
lawyer-client relation	Yes	No	No	No
attorney-client relation	Yes	No	No	No

As nouns, lawyer-client relation and attorney-client relation are synonyms defined as:

lawyer-client relation and attorney-client relation: the responsibility of a lawyer to act in the best interests of the client

lawyer-client relation (noun)	attorney-client relation (noun)
the responsibility of a lawyer to act in the best interests of the client	the responsibility of a lawyer to act in the best interests of the client