If you are buying, the commission is not your issue. If you are selling, you should interview a few Realtors and get a commission price from them. This is a competitive open market place - see what services and prices suit your needs.
If you end up taking a MLS listed property, it will have a commission available to the agent. If you decide to go for an unlisted property, and use the agent, they will try to negotiate with the landlord a commission. If no agreement can be reached, the agent may expect you to pay for their services.
Generally speaking, rentals do not take a lot of time. It is future client building for the agent. I have never requested any compensation from my clients for rental services, even if the other agent or landlord is unwilling to offer a meaningful incentive. I would assume most agents look at it the same way, but I have heard of agents asking their clients to write a check. You can just ask them up front.
Buffalo Grove rentals are a hot commodity, as are rentals in most areas. If you are serious about finding one, dedicate a few hours to your search and make a decision. Do not wait, otherwise you will have to start at the beginning again.
Broker Baird Warner
The typical commission is one month's rent...
I am actually working with someone right now to find a rental in the Buffalo Grove area.
If you send me your email address, I can send you a rental worksheet to fill out. Then, I can set you up for an automated search on what is available in the area you are interested in currently.
Let me know.