| cessionary |
| commissioner(representative, operative, manager, deputy, mediator) |
| concessioner |
| doer(representative, manager, mediator) |
| emissary(substitute, representative, operative, manager, alternate) |
| executor(substitute, representative, operative, manager, alternate) |
| factotum(representative, operative, manager, deputy, mediator) |
| functionary(representative, operative, manager, deputy, mediator) |
| go-between(representative, operative, manager, deputy, mediator) |
| handler(representative, operative, manager, deputy, mediator) |
| heir |
| intermediary(substitute, representative, operative, manager, alternate) |
| lawyer(noun, substitute, representative, operative, manager) |
| mandatary |
| mediary(substitute, representative, operative, manager, alternate) |
| middleperson(representative, operative, manager, deputy, mediator) |
| minister(representative, operative, manager, deputy, mediator) |
| mover(representative, operative, manager, deputy, mediator) |
| negotiator(substitute, representative, operative, manager, alternate) |
| officer(representative, operative, manager, deputy, mediator) |