A modern home at dusk, with warm interior light seen through floor-to-ceiling windows.

Mainstreet Group · Rancho Cucamonga

You’ve proven you can sell.
Let’s build the plan to sell more.

Are you a licensed agent with at least a year in business and a track record of closings? We take productive agents further with weekly accountability, a personalized action plan, and the Compass platform.

Book a confidential conversation

Conversations are confidential. Compensation is discussed privately.

5,000+

Homes closed

4,700+

Families served

$3B+

Career volume

25

Agents

$100M+

2026 volume YTD

Who it’s for

You’ve built something. Let’s build on it.

We’re looking for agents with at least a year in the business and a track record of closings who want to grow from there. If you are new to real estate, we probably aren’t the right fit.

We don’t compete on splits. We compete on helping you sell more — with weekly accountability, a personalized action plan, and the Compass platform behind you.

Your numbers

What would it actually take to 2X your business?

You’ve already proven you can sell. If the goal is to grow from there — maybe even double your volume — start with a clear number, not a pitch. Enter a volume range and your average deal size. I’ll show you what a 2X outline would look like in transactions. That’s a plan to work, not a promise.

Select a volume range and an average deal size to see the outline.

The team

Local Roots. Nationwide Reach.

Mainstreet Group serves Rancho Cucamonga, Upland, Ontario, and the entire Inland Valley. We are a local team with more than 25 years of local experience, and a record of more than 5,000 homes closed and more than 4,700 families served.

A contemporary Southern California home with a pool, palms, and a wide covered terrace.

How we work

The culture stays.
The platform got stronger.

Mainstreet Realtors moved to Compass in 2026 and now operates as Mainstreet Group, from the same longtime home at 10300 4th Street, Ste 100, Rancho Cucamonga, CA 91730. Agents on this team work luxury properties, move-up sales, relocation, and trust or probate transactions — with strategic pricing, innovative marketing, and skilled negotiation behind every listing and every client.

“We are not taking anything away from what makes Mainstreet special. We are building on it.”

Rick Diaz, Broker Associate | Team Lead

What you get

A weekly plan.
A stronger platform.

02 / Compass

The Compass platform and ecosystem

We have the systems in place to help you succeed. Compass tools handle more of the busywork, so you get hours back to spend with clients. Your database starts working harder too, helping you turn relationships you’ve already built into more listings, referrals, and repeat business. You work in the Compass platform, including the CRM and Client Dashboard, Listing Concierge, the Compass digital ads platform, and luxury Amplify for qualifying listings, plus the Compass app with an AI assistant built in. Compass marketing advisors offer training and one-on-one strategy sessions, and you get your own agent website plus opportunities for California and national Instagram features and PR support.

You also become part of something bigger. Compass has a collaborative culture that connects you with like-minded agents across the country, and a vast network of qualified professionals that can open up new business opportunities.

03 / Support

A dedicated support team

A dedicated support team is behind you: marketing, administrative support, and an in-house transaction coordinator. Marketing includes photography and video for listings, help with social media, promotional pieces, and local market updates — and additional support when a listing needs it.

04 / Community

Community and giving programs

The team also takes part in community and giving programs. It’s part of how Mainstreet shows up locally — for the neighborhoods we serve, and for the agents who work here.

Why top agents choose Compass

Rick Diaz, Broker Associate | Team Lead of Mainstreet Group at Compass

About Rick

A broker who still leads from the table.

Rick Diaz is Broker Associate | Team Lead of Mainstreet Group at Compass. He previously served as President and Broker of Mainstreet Realtors and works from the Rancho Cucamonga office. With more than 25 years of local experience, he leads 25 agents serving Rancho Cucamonga, Upland, Ontario, and the entire Inland Valley. The team has closed more than 5,000 homes, served more than 4,700 families, and built more than $3 billion in career sales volume.

In 2026, Mainstreet moved to Compass, keeping its culture and adding a stronger platform. Rick sits down with agents considering a move, recaps the conversation in writing, and stays available for questions.

Rick Diaz · Broker Associate | Team Lead, Mainstreet Group at Compass
DRE Lic. # 01380372
10300 4th Street, Ste 100, Rancho Cucamonga, CA 91730
909.373.2200 · Rick@mainstreetgroup.com
calendly.com/rickdiaz

Start here

Book a confidential conversation.

Tell Rick about your production. He will follow up personally. Submitting this form does not enroll you or commit you to a move. Compensation is discussed privately.

Tell us about your business

Years licensed and recent production help Rick prepare. We’ll never ask for a password or payment here.

Thank you. You’re on Rick’s list.

Your note was received. Rick will follow up to schedule a confidential conversation. If you’d like to pick a time now, you’re welcome to use his calendar at calendly.com/rickdiaz.

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