realtor rental listings-are they shared amongst realtors?

[somerfriend.livejournal.com]

For *rentals*, do realtors in Somerville share apartment listings or do they each have their own?    Would it be a mistake for a landlord or a tenant to use a smaller realtor, because they would not achieve critical mass of prospective tenants/apartments?   If that is the case, which realtors have a sufficient volume of listings/tenants?

Comments

[nomacmac.livejournal.com]

We use Apartment Rental Experts on College Ave in Davis Sq, and have been very happy with them.