Proud to be your CA

Real Estate Expert

I'm Jack Ma — a bilingual real estate agent (English & Mandarin) based in Walnut, CA, with over 15 years of experience helping families across the San Gabriel Valley, Chino Valley, and North Orange County buy, sell, and make confident real estate decisions.

I'm not just your agent for the transaction — I'm your permanent real estate resource. Whether you're ready to sell, thinking about it in a few years, or simply want to stay informed about your neighborhood — I'm here.

With a 101.1% list-to-sold ratio and 300+ homes sold, my approach is built around strategy, honest guidance, and results. I specialize in sellers, probate and estate sales, and families navigating their next chapter in real estate.

When you work with me, you get someone who understands both the market and the community — because I live and work here too.

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My stats

Experience Matters

Consistently ranked in top

Century 21 Agent in State of California

Consistently ranked in top

Realtor in Southern California

Over

Homes Sold

Who you work with

Matters!

Buying

From understanding market intricacies to leveraging our local knowledge, we are committed to securing the best results.

Selling

Selling your home requires specialized expertise and advice, and I recognize the significance of this procedure.

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Begin a voyage through varied neighborhoods, each showcasing its distinct version of the CA lifestyle.

Services

Discover hidden local gems

Communities

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Anaheim

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Brea

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Chino

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Chino Hills

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Diamond Bar

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Fullerton

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Hacienda Heights

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La Habra

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Placentia

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Rowland Heights

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Walnut

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Yorba Linda

What Buyers and Sellers Say About Working With Me

Client Testimonials

"Jack is phenomenal. He guided us and kept us informed of the market situation so we could make an informed decision. His Team is responsive as well. Jack helped us navigate through the process. He understood our situation, and he had our interest in … Read MoreRead Less

"Very professional and friendly. Easy to work with, but most importantly, he does a thorough job. Highly recommend."

"Jack is a pro at what he does, and it really shows with his commitment to customer service, and great knowledge about the market and ultimately getting your home sold for the maximum possible price. Keep up the great work Jack!"

"I was a customer of the real estate firm that employed Jack Ma. It was a difficult sale and Jack handled it very professionally and with care, I would not hesitate to use Jack's expertise in the future."

"Jack Ma helped us negotiate and eventually secure a super competitively bidded house, even when the seller’s real estate agent already refused our bid initially. We also appreciated the fact that he helped us through several house viewing over the s… Read MoreRead Less

"Jack Ma is hands down the best realtor I’ve ever worked with. He sold our home in 2021 for $692,000 and made the entire process absolutely seamless from start to finish. His marketing was top-notch, his communication was clear and consistent, and his… Read MoreRead Less

"Jack helped me sell a home in Alhambra a few years back and more recently guided me through buying my home in Diamond Bar. I’ve known him for over 10 years, and throughout that time he has always kept me updated on the market and checked in regularly… Read MoreRead Less

"Jack is a very responsible and considerate agent who always keeps us updated on the latest。He is a trustworthy person。"

"Jack is the agent for when we bought and sold our place. Simple and transparent throughout the whole process. Amazing agent to work with."

"I have experience selling a previous property, so I am able to compare that experience with this one. Jack Ma and his team did an excellent job communicating each and every step and the progress status in between. I'd like to specifically recognize h… Read MoreRead Less

"Jack was very profeesional. It is not because I had known him before but he was always there for me aeverytime I have quetions. He guided me, was very patient with me and the only realtor that was never forcing himself for me to sell our property but… Read MoreRead Less

"Jack Ma is an excellent agent. Before the listing, he had done research on the market in my area. He also provided efficient strategy which result my property was sold successfully in 7 days. I highly recommend Jack Ma as a listing agent. He is profe… Read MoreRead Less

"We chose Jack because we know his capabilities and we were right. He delivered as promised."

"Reliable and trustworthy broker who has your best interest in mind. He answered questions and provided good guidance. You can count on Jack to do his best on your behalf. I would definitely recommend him to anyone who needs a realtor or broker."

"Professional communication in a timely manner"

"Jack and his team is perfect."

"Jack is very professional and great with communications throughout the sale of our condo. He gave real expectations. He is honest and caring. He has fast access to resources when problems arise, for ex. plumbing issues, etc. Jack closed the sale of o… Read MoreRead Less

"The sale was smooth and there were no issues. Any potential issues or questions were immediately addressed by Jack and his team. Vivan Wu and Carrie Chen were on top of everything and provided excellent service. We have worked with Jack through multi… Read MoreRead Less

"Jack was very easy to work with. As a California Realtor not residing in California, I needed someone who would be able to take care of the property as if it were there own. Jack went above and beyond and we received multiple offers prior to even goi… Read MoreRead Less

"Jack is such a friendly person and listens to you. He gives good advise.He made our transition easy."

"Jack us knowledgeable and professional and also speak chinese so very easy for me to communicate with. He is straight to the point and could help save time if u are a busy individual."

"Jack provided us with great market evaluation and listing strategy. We were able to receive multiple offers and open escrow within 1 week. The entire experience with Jack gave us a hassle free real estate selling experience. Extremely knowledgeable p… Read MoreRead Less

"Home purchase isn't always easy thing to do. For my case, Jack Ma made it really easy for me. Jack is incredibly friendly and professional, and is willing to go above and beyond to find the properties you like. He is truly professional and genuinely … Read MoreRead Less

"Jack is very knowledgeable in market condition and always provide great suggestion in the decision making process."

"Excellent, very professional and friendly, I recommend a customer (friend) and still recommending, thanks!!!"

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Our Listings

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Map of Homes Sold

Ready to take

The next step?

Unsure whether to buy or sell at this moment? In search of a dependable contractor? I am keen to understand more about you and what you require! Please feel welcome to utilize any contact method provided here to get in touch with me!

Let's talk

Diamond Bar, Walnut, Chino Hills & Tri-County Real Estate

Real Estate Expert

Experience Matters

Matters!

Buying

Selling

Explore

Communities

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Anaheim

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Brea

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Chino

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Chino Hills

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Diamond Bar

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Fullerton

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Hacienda Heights

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La Habra

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Placentia

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Rowland Heights

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Walnut

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Yorba Linda

Client Testimonials

Our Listings

Map of Homes Sold

The next step?

Featured Articles

Is the Housing Market Crashing? Why Inflation Is Actually Keeping San Gabriel Valley Home Prices Up in 2026

Los Angeles County Housing Market Update — May 2026: What the Data Means for Buyers and Sellers in Diamond Bar, Walnut, Chino Hills, Brea, Yorba Linda, Rowland Heights, and La Habra

Orange County Housing Market Update — May 2026: What the Data Means for Buyers and Sellers in Brea, Yorba Linda, La Habra, Fullerton, Placentia, and Anaheim Hills