What makes a good mortgage broker?

[Jimmy Wen]

Hi all,

I am preparing to acquire my very first multifamily rental property.

Here is my question:

Is it really worth it to find a mortgage broker when I can simply go to a bank or a credit union and ask for a 30 year fixed loan? 

I can see a reason of hiring a broker if you need more creative or nontraditional loans. If I just need a conventional loan, do I need a broker? Also, since I will be working through the middleman, does that mean I have to pay more interests or fees than a conventional loan from a bank or credit union?

Thank you,

Jimmy