Often times your Realtor will suggest an inspector that they have worked with on a regular basis and have a very good relationship with. Keep in mind that there are no ‘bonuses’ to the agent or the inspector in this. No one gets paid for a referral or anything like that so usually going with the inspector that the agent recommends is the best idea because they have no secret ulterior motive.
This article published by Thurston Talk is a really good read. Check it out here: http://www.thurstontalk.com/2015/02/21/boggs-home-inspection-olympia/