FOR IMMEDIATE RELEASE
Olympia, WA — June 9, 2025 — In response to the newly enacted changes to Washington’s Residential Landlord-Tenant Act (RCW 59.18), Send Certified Mail is proud to announce that all Certified Mail letters mailed on behalf of Washington property management companies will now be postmarked from within the state of Washington, ensuring full compliance with the law.
As of 2025, Washington landlords are legally required to send certain tenant notices via USPS Certified Mail, which must be postmarked in the state of Washington. This requirement aims to improve transparency and accountability in landlord-tenant communications. Especially concerning lease terminations, rent increases, and eviction notices.
Send Certified Mail, the industry leader in compliance and online U.S. Mail services, provides an innovative, web-based platform that allows property owners and managers to upload PDF letter files online from anywhere and have them printed, packed, and postmarked within Washington the same-business-day.
"This change in the law puts new pressure on already busy property managers," said Send Certified Mail Founder and CEO, Gary Brown. "We’re excited to offer a compliant, convenient, and secure solution that allows professionals to manage their U.S. Mail needs from anywhere in the world."
Compliant, Secure, and Streamlined
Send Certified Mail is more than just a mailing service; it is a trusted partner for businesses navigating U.S. Mail requirements. Here’s how we’re helping Washington property professionals:
- Washington Postmark Guarantee – All Certified Mail letters on behalf of Washington property professionals are postmarked from within the state.
- Same-Business-Day Mailings – Letters uploaded are printed and mailed the same-business-day.
- Secure Upload from Anywhere – Users upload PDF files via our secure web platform. No printing, packing, or Post Office trips required.
- 10-Year Data Archive – Our platform automatically stores USPS proof of mailing, delivery tracking, and Return Receipt Signatures for 10 years.
- Bank-Grade Encryption – We use the highest level of data security to ensure your records are safe and confidential.
Certified Mail Without the Headache
Send Certified Mail removes the manual work associated with U.S. Mail by offering:
- USPS First-Class, Certified, Priority, and Express Mail
- Easy batch mailings for bulk notifications
- Flexible user access and team management features
- Full delivery audit trails and reporting
- Zero monthly minimums or subscription fees
Dual Mailing Compliance: Certified and First-Class Mailings
In many cases, legal compliance requires both Certified Mail and First-Class Letters to be sent simultaneously. Send Certified Mail supports this with in-state First-Class mailings, ensuring both types of notices are processed efficiently and in full accordance with Washington law.
Free 10-Year Archive with Affidavit of Mailing
Each letter mailed through Send Certified Mail is automatically stored in a secure 10-year compliance archive, including:
- A copy of the mailed letter
- An Affidavit of Mailing
- Full USPS Certified Mail delivery and tracking data
This digital archive is free of charge to Send Certified Mail account holders and is accessible 24/7/365. A valuable tool for legal defense, compliance verification, and recordkeeping.
No Contracts. No Monthly Fees. Pay As You Mail.
Unlike other services, Send Certified Mail operates on a pay-as-you-mail model. There are no monthly fees, no long-term contracts, and no special equipment required. Customers easily upload their PDF files online and pay per letter mailed.
API Automations for Monthly Notices
For property managers handling high-volume monthly compliance mailings, Send Certified Mail offers automated processing using secure SFTP integrations. These computer-to-computer communications allow batch mailings to be initiated directly from the sender’s system. An ideal solution for tenant renewal notices, late payment warnings, and other recurring mailings. Send Certified Mail’s automation integrations reduce human error and increase operational efficiency.
Helping Property Professionals Stay Focused
With property management demands increasing, our solution gives landlords, attorneys, and property managers more time for what matters—tenant relations, compliance, and operational efficiency.
Whether managing a residential property, multi-unit complex, or commercial property, Send Certified Mail provides peace of mind that every notice is sent accurately, the same-business-day, and in full compliance with Washington law.
Get Started Today
Send Certified Mail invites property managers across Washington to learn more about how our service ensures 
compliance with RCW 59.18. Schedule a free Live Demo for a customized, commitment-free tutorial today!
About Send Certified Mail
Send Certified Mail is an online service offering fast, same-business-day print and mail solutions for U.S. Mail. Upload your PDF letter files to save time and money.
Owned by Certified Mail Envelopes, Inc., Send Certified Mail is a faith-based Software as a Service (SaaS) company based in Celebration, Florida. Like its sister platform, Certified Mail Labels, Send Certified Mail is licensed to sell postage and special services from the U.S. Postal Service to automate sending U.S. Mail online.
Media Contact:
Lauren Gold
Email: [email protected]
Phone: 888.406.1792