How do I find a good, investor-friendly real estate agent?

[Raghav Haran]

I'm in the Ann Arbor, Michigan area and I'm looking for a real estate agent to work with me on my first deal. 

What sort of things should they be able to help me with? What separates a "good" real estate agent that understands multi-family investment properties from someone who's not so good? 

Alternatively, if anybody here is an agent based around/near Ann Arbor, please send me a message!

Thanks everybody! I really appreciate the help :)