Etiquette for a "One Day Stand" with a realtor

[John Laney]

Hello,  

I'm interested in purchasing a 700k+ home in the Oregon Willamette Valley in the 2021 time frame. But since I'm so far out I'm not really interested in committing to a realtor yet. However, I will be in the area over Christmas and am interested in walking through at 2-4 properties to get an idea of exactly what I want. 

My question is this.  What is the etiquette for a situation like this?  Should I go directly to the listing agent to walk through his/her listing? Or do I just need to commit to a realtor this early in the game? I want to be transparent an honest, but also not get tied down this early.

Thanks for the help, 

Best, John