Depends on what the other daughter uses. If her first name is [name_u]Kelsey[/name_u] and middle name [name_u]Lee[/name_u] and she doesn’t go by them together, deal. If she goes by [name_u]Kelsey[/name_u] [name_u]Lee[/name_u] together, no deal.
[name_m]Richard[/name_m] but he exclusively wants to use [name_m]Dick[/name_m]?