Yes! A rental agent will be able to assist you. I recommend Windermere Property Management Seattle (http://www.windermereseattlepm.com/). Listing rentals with brokers isn't overly popular in Seattle, so your choices may be a bit more limited going this route versus checking classifieds (such as Craigslist).
There are also a few other local property management firms around the city in each of the major neighborhoods so I'd recommend searching for local property management firms in the neighborhoods you're interested in. Hopefully this helps!