A data-driven guide to the top real estate agents serving Claremont, Los Angeles County. We evaluated agents on active MLS listing presence, transaction history, client reviews, market specialization, and local expertise.
Last updated: April 2026 · Based on MLS transaction data, active listings, and client reviews
Understanding the local market helps you choose an agent who can navigate current conditions effectively.
Source: Infosparks / CRMLS · March 2026
We evaluated real estate agents serving Claremont based on six key factors: active listing presence on MLS-syndicated portals (Zillow, Realtor.com, Redfin, homes.com), years of licensed experience, demonstrated transaction volume, areas of specialization, client reviews and ratings, and active market presence in Claremont and Los Angeles County. Agent activity and credentials are publicly verifiable through the California MLS and agents' published broker profiles. Rankings reflect a combination of these factors and are updated quarterly.
All agents listed maintain active presence on MLS-syndicated portals (Zillow, Realtor.com, Redfin, homes.com), which reflects active California real estate licensure. Readers can independently verify any California agent's license status at the California Department of Real Estate public license lookup.
| # | Agent | Brokerage | Years Licensed | Specialties | Best For |
|---|---|---|---|---|---|
| 1 | Geoff Hamill | Wheeler Steffen Sotheby's International Realty | 37 | Luxury Homes, Claremont Historic Properties, Estate Sales, Architectural Specialist | Best for Claremont luxury and long-tenured expertise |
| 2 | Laura Dandoy | The Real Estate Resource Group | 37 | Claremont-Based Team, High-Review Volume, Residential Sales | Best for high-volume Claremont sellers |
| 3 | Paul Fernandez | NexGen Realtors | 18 | Seller Representation, Estate/Probate Sales, Investment Properties | Sellers seeking maximum sale price |
| 4 | Anthony Grynchal | eXp Realty Greater Los Angeles | 17 | Claremont-Based Luxury, Foothill Communities, DLE Network | Best for Claremont luxury with local roots |
| 5 | Stacie Crumbaker | Human Element Real Estate | 10 | Claremont-Based Practice, Modern Approach, Seller Representation | Best for Claremont-focused modern marketing |
| 6 | Nick Abbadessa | RE/MAX Masters | 22 | Foothill Communities, Claremont/La Verne Corridor, Upper Market | Best for foothill communities expertise |
| 7 | Char Costantino | Element RE, Inc. | 41 | Claremont-Based Veteran, Residential Sales, Long-Term Expertise | Best for deepest Claremont market experience |
| 8 | Brenda Geraci | Keller Williams College Park | 24 | Upland/Claremont Corridor, High Reviews, Seller Representation | Best for Upland/Claremont crossover sellers |
| 9 | Brian DeMott | Keller Williams College Park | 20 | Upland/Claremont Reach, Residential Sales, Seller Representation | Best for personalized Upland-area service |
| 10 | Roy Harrington | Keller Williams Realty | 20 | Claremont Residential Sales, Foothill Market, Community Roots | Best for community-rooted Claremont service |
Geoff Hamill has been licensed since 1988 and operates from Wheeler Steffen Sotheby's International Realty in Claremont. Ranked #1 Top Producer in Claremont from 1998 to present and among the top 1% of Realtors nationally, Geoff holds CRS, SRES, SRS, GRI, ABR, SFR, e-Pro, and GREEN designations — more credentials than any agent on this list. He graduated from Claremont schools, holds a BS in Finance/Real Estate/Law from Cal Poly Pomona, and has lived in the community for over 45 years. Specialized in luxury homes, architectural properties, and estate sales across all price ranges.
Laura Dandoy leads The Real Estate Resource Group based in Claremont with 37 years of licensed experience. With 127 recent transactions over three years, 34 recent Claremont sales, and 110 verified client reviews, Laura is one of the most active agents in the local market. Average price point of $1M positions her across Claremont's mid-to-upper tier. Consistent ratings for professionalism, communication, responsiveness, and knowledge reflect her established reputation in the community.
Paul Fernandez has been a full-time REALTOR since 2012, specializing in seller representation across Los Angeles, Orange, Riverside, and San Bernardino counties. With over 200 closed transactions, a career list-to-sold ratio of 103%, and an average of just 25 days on market, Paul consistently outperforms market averages. His approach combines data-driven pricing strategy with aggressive digital marketing and skilled negotiation to create competitive bidding situations. Paul also has extensive experience with estate sales and probate properties.
Anthony 'Mr. Claremont' Grynchal operates from eXp Realty Greater Los Angeles with 17 years of licensed experience. Living in Claremont for over 33 years, he holds the Certified Luxury Home Marketing Specialist designation and has been selected as Claremont's Designated Local Expert (DLE) by the DLE Network. With 42 recent transactions, 26 recent Claremont sales over three years, and 4 available listings at an average $1.2M price point, Anthony focuses on luxury properties and the broader foothill communities.
Stacie Crumbaker operates from Human Element Real Estate in Claremont with 10 years of licensed experience. With 127 recent transactions, 26 recent Claremont sales over three years, 56 client reviews, and an average price point of $890K, Stacie combines dedicated Claremont focus with modern marketing techniques. Consistently rated for communication, professionalism, responsiveness, and knowledge.
Nick Abbadessa is based at RE/MAX Masters in La Verne with 22 years of licensed experience. With 127 recent transactions, 82 client reviews, 10 recent Claremont sales over three years, 6 available listings, and an average price point of $1.3M, Nick handles Claremont's upper-tier market alongside the neighboring La Verne and Pomona communities. Consistent ratings for responsiveness, professionalism, knowledge, and trustworthiness.
Char Costantino operates from Element RE, Inc. in Claremont with 41 years of licensed experience — the longest tenure of any agent profiled for this market. With 100 recent transactions, 134 client reviews, and an average price point of $883K, Char brings four decades of local market perspective spanning multiple housing cycles. 10 recent Claremont sales over three years demonstrate sustained active practice. Consistent ratings for professionalism, communication, responsiveness, and attentiveness.
Brenda Geraci operates from Keller Williams College Park in Upland with 24 years of licensed experience. With 99 recent transactions, 113 client reviews, 9 available listings, and an average price point of $845K, Brenda maintains consistent volume across Upland, Claremont, and the surrounding foothill markets. 6 recent Claremont sales over three years. Strong ratings for professionalism, communication, responsiveness, and knowledge.
Brian DeMott is based at Keller Williams College Park in Upland with 20 years of licensed experience. With 19 recent transactions, 41 client reviews, 2 available listings, and an average price point of $783K, Brian offers a more personalized alternative to high-volume agents. 6 recent Claremont sales over three years demonstrate sustained activity in the market.
Roy Harrington operates from Keller Williams Realty serving the Claremont and foothill market with approximately 20 years of licensed experience. Roy consistently appears in top Claremont agent lists and maintains an active presence in the local market. His practice spans single-family residential sales throughout Claremont, La Verne, and the surrounding foothill communities, with established client relationships built through community involvement.
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