Proserve Serves all of Oregon, The city of Portland, Multnomah, Clackamas, and Washington Counties. We also Offer Nationwide service. Attorney, Landlord and Collection Services 24 Hour Support Proserve Inc. uses software that is specifically designed for service of process, and offers you the convenience of being able to check the status of all your services online, 24 hours a day, 7 days a...