Mike Silvey will present “Estoppel Certificates, Subordination Agreement and Landlord Waivers: The Basics and Why They Are Still Important” at 11:45 a.m. on Friday, May 11 at the Commercial Leases in the 21st Century Seminar. Silvey will speak about lease negotiations, sales and foreclosures, as well as key provisions and documentation, sharing perspectives from property owners, tenants, subtenants, lenders and purchasers. The event will take place from 9 a.m. to 5 p.m. at the World Trade Center in downtown Portland, Oregon.