Do I Need a Buyer's Agent?

[Julia Ann]

Am shopping for my first deal - a STR in New Hampshire. I have purchased homes before but only between family without agents so I'm finding myself a little ignorant on some of the basics. I've found a home I'm interested in and contacted the seller's agent off Zillow. Am going to see it in the next 10 days. As things progress, do I need a buyer's agent? Considering this property is out of state for me (I live in MA and have already caught a few things that are different in NH) and it's my first one would a buyer's agent help me with negotiations, etc.? And if so, how do I go about finding one?