About Me
Hi, I'm Mario.
I was born in the Philippines and raised in South San Francisco since I was eight years old. This is home, and I bring a lifetime of local knowledge and community connection to my work as a REALTOR®. I help buyers and sellers across the San Francisco Peninsula, in South San Francisco, San Bruno, Daly City, Millbrae, Burlingame, San Mateo, Foster City, Belmont, San Carlos, and Redwood City.
Before real estate, I spent over 24 years as a Field Engineer at DellEMC. That work taught me precision, reliability, and how to solve complex problems, and I bring all three to my clients: clear pricing guidance when you sell, help crafting a competitive offer when you buy, and steady negotiating when the contract is on the table.
I'm also a two-time Triathlon Ironman Finisher, an Alcatraz swim survivor, and the owner of a PostalAnnex business. Those parts of my life come down to discipline, endurance, and an unwavering commitment to service. Whether I'm guiding a first-time buyer or supporting a seasoned investor, I bring focus, integrity, and personal attention to every client relationship.
Outside of real estate, I enjoy training, spending time with my family, coaching youth sports, and flying my drone along the Pacific Coast.
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1
Listen first
Your goals, your budget, your timeline. The plan follows from those, not from a script.
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2
Show the numbers
Every price I recommend comes with a comparative market analysis you can read and question.
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3
Stay in touch
Clear updates from first tour to final signature, and I'm still a phone call away after closing.
Mario AlviorREALTOR® · CA DRE #02166378 · Keller Williams Peninsula Estates
