Thea Seilonen

I’m Thea Seilonen with Mailboxes PLUS in Grass Valley, CA. I provide professional on-site notary services as part of a convenient local retail service center focused on helping customers handle important personal and business tasks efficiently.

At Mailboxes PLUS, I support clients who need documents notarized while also offering access to related services in one place. Whether you are preparing paperwork, managing shipments, or taking care of everyday office needs, my goal is to make the process clear, friendly, and practical.

• Notary Public and on-site notary services
• Packing and shipping support
• Mailbox rental
• Live scan fingerprinting
• Passport photos
• Fax and copying services

I’m proud to serve the Grass Valley community with dependable service through Mailboxes PLUS.