I need help finding the right space to lease. What are the fees for tenant representation?

Generally, there is no fee to the tenant. The commission is paid for by the listing broker or landlord.

Can I get better rent if I deal directly with the landlord or his representative?

Many tenants believe the landlord pays less commission if they do not have representation and somehow this passes through to the tenant. Usually, the landlord pays the same commission regardless if there is a tenant broker or not.