I do a lot of rental work in New Jersey. Most of the landlords I work with will ask the tenant to pay the commission, which is generally split between the listing agent and the tenants agent. The reason is in a relocation situation, the relocation company will pay the commission on behalf of the tenant. However, the commission can be made part of the negotiations. If a tenant makes it worthwhile for the landlord, for example by agreeing to a two year lease, they can often convince the landlord to either pay or split the commission with them. Bottom line is, all commissions are negotiable, including rental commissions.