
2 minute read
Our Team
As the Wine Country Colbert team, we believe in making the impossible possible when it comes to selling your home or finding a new one. We have embraced a high-tech, hightouch solution to the search and sell process, pairing the industry’s finest technology with unparalleled support, insight, and analysis. With integrity, honesty, and trust as the cornerstones of our brand, we value the relationships we build along the way with the friends who consistently trust us with some of the biggest decisions of their lives.
Peter Colbert
415.798.0203
DRE 01703429 peter@winecountrycolbert.com
Peter Colbert is in the top 1% of all North Bay agents in sales per year selling over $200 million dollars’ worth of Wine Country properties over the past four years.
Erika Altes
707.291.0238
DRE 02029385 erika@winecountrycolbert.com
Erika Altes was born and raised in Sonoma County. This has given her an opportunity to build an extensive network and form close relationships with local businesses and people.




Jill Peterson
707.484.1029
DRE 02108986 jill@winecountrycolbert.com
Jill is a 6th generation Sonoma County native. Real estate has always been an important part of Jill’s life, as her grandfather, father and husband have been involved in the business for decades.
Mark Altes
707.235.3249
DRE 01719069 mark@altesrealestate.com
By working side by side with his clients, Mark is able to help them make the best decisions for all of their Real Estate transactions, based on market data and past experience with Real Estate.

Heather Arnerich
925.899.0504 heather@winecountrycolbert.com
Heather Arnerich is the motivated and driven Assistant/Transaction Coordinator for the Wine Country Colbert Group. Heather is a part of the Selling & Buying process every step of the way.
Juliana Snorek
925.758.3629
DRE 02105840 juliana@winecountrycolbert.com
Juliana has spent the last 9 years excelling in the hospitality industry. She is excited to help those both new and familiar to Sonoma & Napa County find their dream home.
Mark Altes is a Broker Associate at Compass, a company that prides itself on bringing the best knowledge, experience, and service to real estate investors worldwide. By working side by side with his clients, he is able to help them make the best decisions for all of their real estate transactions, based on market data and past experience with real estate. Having been born and raised in the Wine Country is one of Marks biggest assets.
With over 17 years’ experience in general engineering construction as well as general construction the vast array of knowledge Mark brings to the table is unsurpassed. Being involved in the development of large Estate projects, wineries, wine caves, commercial projects, horse arenas, pool construction, and sub-divisions is what gives him an edge. This knowledge and understanding of the systems involved in real estate is an asset that leads to making educated decisions based off facts. Along with that experience comes a team and network of connections that runs deep into the Wine Country.
Mark feels that there are two very important aspects to understanding a real estate transaction. One, is understanding the piece of real estate with the inclusive facts. The second, is “negotiating” through the deal making sure that all facts are accounted for. While doing both of the above he keeps the client informed at all times so the transaction seems seamless.
Mark works alongside his wife, Erika, who is well-versed in everything from sales to digital influencing and marketing. Mark volunteers for the California Waterfowl Association as well as being a member of the organization. He has an associates degree in Liberal Arts and Real Estate License Certificate from Santa Rosa Junior College, as well as holding a General Engineering Contractors License. He enjoys mountain biking, skiing, and taking in everything Sonoma County has to offer, whether it’s a local restaurant, winery, or beautiful sunset.