Find your place in Marin.
M&M Marin Real Estate is the Engel & Völkers team of Monica Costa and Michelle Pender, licensed Realtors representing buyers and sellers of luxury homes in Marin County and San Francisco — from the first showing to the day you get the keys.
real estate experience
Marin County & San Francisco
Buena Vista Heights sale
The Official Ferrari Magazine
People
We listen first. Every move starts with understanding your family, your timeline and what home really means to you.
Places
From Ross legacy estates to Tiburon’s waterfront, we know the towns, the streets and the schools behind every listing.
Possibilities
Smart pricing, strong negotiation and clear advice, so you can see what’s possible and move with confidence.
The finest homes in Marin County & San Francisco
Prices and details as listed on Zillow and Redfin, September 2026. Listings are represented by other brokerages and are not M&M Marin Real Estate listings. Information deemed reliable but not guaranteed.
Whatever your next move, we’ll walk it with you.
Full-service representation with one simple promise: honest advice and a partner who picks up the phone.
Buying
Neighborhood tours, off-market leads, and a clear strategy for competitive offers.
Selling
Pricing analysis, staging guidance, professional photography and targeted marketing.
Investing
Income properties, second homes and long-term planning with local market insight.
Neighborhoods we call home
Real estate guides
Explore Marin County
Select a town on the map to see homes for sale there, or ask us about private and off-market opportunities.
Swipe to explore the map. Town areas are shown by ZIP code and are approximate.
Meet
Monica & Michelle
Two partners. One neighborhood-first approach.
A native San Franciscan, Michelle Pender has built her career around an intimate understanding of San Francisco’s distinctive neighborhoods, architecture, microclimates and complex real estate landscape. Her experience spans luxury residences, multifamily properties, condominiums, TICs and co-ops, complemented by sophisticated marketing, strong negotiation skills and a highly personalized, white-glove approach. As a member of Engel & Völkers Private Office, Michelle also brings access to an exclusive international network of advisors and premium properties.
That deep San Francisco expertise is complemented by Monica Costa’s extensive presence across Marin County and the greater Bay Area. A founder of Engel & Völkers Marin County who has also served as Marin County Manager and VP of Sales, Monica brings more than 20 years of experience spanning luxury real estate, marketing, fashion, automotive and yachting. Her background in International Business and Marketing, combined with her experience representing distinctive properties, investors and luxury buyers, gives the partnership a strategic perspective that extends well beyond a traditional residential transaction.
Their combined expertise is particularly relevant as AI-generated wealth continues to reshape the San Francisco luxury market and expand buyer interest beyond the city. Recent reporting describes significant AI-driven demand at the upper end of San Francisco real estate, while Monica has seen a related pattern in her own Marin practice: an emerging trend of San Francisco buyers looking north across the Golden Gate for greater privacy, space, nature and long-term quality of life.
Together, Michelle and Monica create a natural bridge between San Francisco and Marin County. Michelle provides the granular knowledge and relationships needed to navigate San Francisco, while Monica brings deep Marin expertise and an understanding of the communities increasingly attracting buyers north of the Golden Gate, from Sausalito and Mill Valley to Tiburon, Belvedere, Ross and Kentfield. For executives, founders, investors and families considering a move between the two markets, clients can work with one collaborative team that understands both sides of the bridge.
For clients navigating divorce or another significant life transition, that cross-market perspective can be especially valuable. Whether the decision involves selling a San Francisco property, retaining a home, purchasing separately, relocating to Marin, or repositioning real estate as part of a broader financial transition, Monica and Michelle bring together local knowledge, discretion, strategic marketing and negotiation expertise across two of the Bay Area’s most important luxury markets.
About
Monica & Michelle
Who are M&M Marin Real Estate?
M&M Marin Real Estate is the partnership of Monica Costa (CA DRE #02063023) and Michelle Pender (CA DRE #01911642), Realtors with Engel & Völkers based at 78 E Blithedale Ave, Mill Valley, CA 94941. They represent buyers and sellers across Marin County and San Francisco.
Who is Michelle Pender?
Michelle Pender is a native San Franciscan and Engel & Völkers Realtor (CA DRE #01911642) and a member of Engel & Völkers Private Office. She specializes in San Francisco luxury residences, multifamily properties, condominiums, TICs and co-ops. The San Francisco Standard reported in May 2026 that she sold a Buena Vista Heights home in three days for $7 million, $2 million over asking.
Who is Monica Costa?
Monica Costa (also known as Monica Costa Yazbek) is a founding member of Engel & Völkers in Marin County and a former Marin County Manager and VP of Sales, with more than 20 years in luxury real estate, marketing, fashion, automotive and yachting. The San Francisco Standard quoted her in October 2025 describing Belvedere as "the Atherton of Marin."
What areas do Monica Costa and Michelle Pender serve?
San Francisco and all of Marin County, including Sausalito, Mill Valley, Tiburon, Belvedere, Ross, Kentfield, Larkspur, San Anselmo, Corte Madera, San Rafael and Novato.
Who can help me move from San Francisco to Marin?
Monica Costa and Michelle Pender work as one team across both markets: Michelle on the San Francisco sale or purchase and Monica on the Marin side, coordinating timing, pricing and the move between the two.
Do they help with selling a home during a divorce?
Yes. Monica and Michelle advise divorcing homeowners on whether to sell, buy out, keep or temporarily co-own a home, and they publish a free Divorce & Real Estate guide. They coordinate with each party's attorneys and do not give legal or tax advice.
How do I contact M&M Marin Real Estate?
Use the contact form on this website or visit the office at 78 E Blithedale Ave, Mill Valley, CA 94941.
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Let’s talk about your next move.
Curious what your home is worth, or ready to start looking? Send a note and we’ll be in touch.
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78 E Blithedale Ave, Mill Valley, CA 94941
The Ultimate Buyers & Sellers Resources
Straight answers to the questions we hear most from buyers and sellers in Marin County and San Francisco.
Top 50 buyers questions
Financing, offers, inspections, property taxes, and choosing the right Marin or San Francisco community.
Top 50 buyers questionsTop 50 sellers questions
Pricing, preparation, disclosures, marketing, offers, and what you will actually net from your sale.
Top 50 sellers questionsElevate Home Services
A line of credit designed to take the stress out of selling a home. Pay for the improvements that help your home sell, and repay only what you spend through the closing process.
Learn about Elevate Home Services- Fast applicationSee if you qualify with no impact to your credit score.
- Flexible use of fundsPay vendors by cash or check.
- Simple repaymentPay nothing until closing.
As featured in
Monica & Michelle on video
Home tours and real estate advice from Monica Costa and Michelle Pender.
Monica Costa
More on Monica's YouTube channel
Michelle Pender
Life on the water
Beyond the home: explore yachts for sale and charter through Engel & Völkers Yachting.
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