client's [singular possessive] is used to show possession of an item or thought (displeasure) belonging to only one client. clients' [plural possessive] is used to show possession of items or thoughts (representatives) belonging to more than one client.

Is it client's needs or client needs?

One of the most common phrases when talking about clients will concern their needs, and that is why you will often find the word “client” linked to the word “needs.” ... If you were referring to the general needs of all clients of a particular firm, both the phrases “client's needs” and “client needs” would be incorrect.

How do you write more than one client?

Clients => Plural of client. Client's => Of or belonging to one client. Clients' => Of or belonging to more than one client. If you are talking about the clients (two or more) themselves, use clients.