Question about Real Estate Broker exclusivity in Ulster county NY

[Zach Amit]

Hello!

This is my first post in the forums!

I've been listening to the podcasts and loving it.

I've been looking at multi family investments in ulster county, NY and I've seen 4 houses with a broker. he is now asking me to sign an exclusive right to represent me... any thoughts on that?
I dont have enough experience with him to know how efficient he is but he seemed nice and professional. 
any advice will be appreciated.
Thanks!

Zach