Renter asking for agent commission at closing

[Alan Bosca]

Hi -

I have a potential renter about to sign a lease that is hassling my agent for a commission.  I know that it comes out of their pocket, not mine, but (a) can the agent say no if it's being disclosed at lease signing & (b) this type of last minute haggling doesn't sit right with me as a type of personality to be renting to.

The property has been on the market for a couple months with just this offer, so I do have a bird in hand.

Any advice?  Thx!