our team

Refined Professionals,
Here for You.

Unprecedented Collaboration.

With more than 35 years of proven success, our team has the experience, expertise, and insight to identify valuable real estate investment opportunities. Each of our team members has a unique ability and perspective that contributes to Tashakorian’s continued success.

Ben Tashakorian

Senior Managing
Director of Investments

Ben Tashakorian, a Senior Managing Director of Investments, joined Marcus & Millichap in 2002. Ben brings his knowledge and expertise of commercial real estate investments to better serve his clients. Since joining the firm, he has personally evaluated $3 billion dollars in assets. Ben has over 500 career closings, surpassing a billion dollars in sales and 12 million square feet of commercial space in 31 different states. In 2015 Ben was appointed to Institutional Property Advisors, an exclusive division of Marcus & Millichap.

Bradley Peters

Senior Financial Analyst

Bradley is the Managing Partner of the Tashakorian Office Industrial Advisors, a division of Marcus & Millichap. Bradley joined the team as a financial analyst in 2012 and was promoted to the position of Partner in 2016. In more than 5 years with the team, he has transacted on over 140 transactions for $500,000,000 and 4.5 million SF of commercial space. Bradley facilitates the day-to-day operations of the group, including brokerage, financial underwriting, asset valuation, books & records auditing, establishing marketing materials and campaigns, corporate compliance, government compliance and training new agents, among other tasks. In 2015 he was tapped by Marcus & Millichap to assist with developing a financial model for the firm’s proprietary valuation software which rolled out to high praise in early 2016. Bradley graduated from San Diego State University, earning a B.S. in Finance. Bradley was recently accepted into San Diego State’s Graduate MBA program and began attending the program in Spring 2018.

Ali Valiahdi


Ali is a dedicated and knowledgeable real estate professional based in San Diego, where he works with the Tashakorian Group of Marcus & Millichap. He specializes in assisting clients with the acquisition and disposition of commercial properties, including office buildings, industrial facilities, retail centers, and hospitality assets across the United States. With a keen eye for identifying opportunities and extensive experience evaluating markets across multiple geographies, Ali is well-equipped to stay ahead of the curve in today's rapidly evolving marketplace. He excels in bridging the gap between private and institutional investors and is committed to providing advisory solutions that align with his clients' short-term objectives and long-term goals.

Ali holds a dual degree in Finance and Real Estate from the University of San Diego, where he was an active member of the Burnham-Moores Center for Real Estate. In his spare time, Ali enjoys playing basketball, tennis, and golf, as well as spending time with family and friends.

Ryan Williams


Ryan Williams specializes in the acquisition, disposition, and 1031 exchange of investment grade single and multi-tenant office and industrial assets nationwide. Ryan understands the role of an effective advisor entails more than simply connecting sellers and buyers. Accordingly, Ryan aligns his services based on each client’s unique ownership circumstances and interests. His capital markets knowledge, coupled with his relationships at Marcus & Millichap Capital Corp., allow him to maintain steadfast relationships with his clients throughout ownership.

Prior to joining The Tashakorian Group, Ryan represented publicly traded and privately held hospitals throughout California in medical malpractice actions. He has also practiced administrative law. Ryan attended Ball State University and earned a bachelor’s degree in legal studies in 2014. At Ball State, Ryan served on the Student Government Board, was president of his fraternity, and a member of the Ball State men’s rugby club. Ryan moved to San Diego in 2015 to pursue his J.D. at The University of San Diego School of Law after receiving the Dean’s Honor Scholarship. During law school, Ryan was a member of the Real Estate and Land Use Society and an executive member of the Student Bar Organization. Ryan also received numerous CALI awards for obtaining the highest GPA in his class and was awarded the Irvin J. Khan scholarship for achieving the highest real property law GPA of his graduating class. In his free time, Ryan enjoys hiking, cycling, CrossFit and spending time with his wife, Haley.

Peter Eltaeb


Peter Eltaeb is a San Diego native who graduated from La Jolla Country Day School and continued his education at the University of Colorado Boulder, double majoring in economics and international affairs. He has been mentored by a major San Diego commercial property owner since 2019, further increasing his market expertise. Peter joined The Tashakorian Group in November 2021 as an associate specializing in Industrial and GSA Office properties throughout the nation. Through his education, mentorship, and research, Peter succeeds at providing his clients with exceptional financial advisory that creates and preserves wealth.

In his free time, Peter enjoys reading books, running San Diego’s beaches and canyons, and traveling across the U.S and overseas.

Russ Wittman


A native San Diegan, Russ Wittman specializes in advising and representing private clients and investors on all aspects of the acquisition, disposition and leasing of industrial assets nationwide. Prior to joining Marcus & Millichap, Russ worked in the Caterpillar organization where he developed and managed sustainable energy projects and PPAs for utilities and commercial and industrial building owners throughout the United States. Russ had been recruited by Caterpillar out of the financial services industry where he was working as a licensed financial advisor with Merrill Lynch and LPL Financial-- managing the assets of corporate pension plans as well as the personal assets of C-Suite executives and professional athletes.

While attending UC Berkeley and the University of Arizona, Russ played Division I football for both universities. Upon graduation and before becoming a financial advisor himself, Russ worked as a licensed sports agent where he managed and negotiated contracts for professional athletes. When not serving his clients’ needs, Russ enjoys spending time with his wife, Katy, and their two sons. He also helps coach his sons’ athletic teams. When not at work or with his family, you will most likely find Russ on the golf course.

Tyler Brown


A San Diego Native Tyler is a graduate of San Diego State University. Prior to working with Marcus & Millichap Tyler worked for the San Diego Fire Department as a lifeguard at some of the busiest beaches in the county. Over the five years he was employed as a first responder he learned the importance of creating positive relationships with clients while managing the important tasks at hand. While still attending San Diego State University Tyler joined the Tashakorian Group. In addition to being an associate, Tyler also works closely with Ben and Brad as an assistant to help the process of due diligence for the entire team to best prepare for successful listings.

In the first eight months Tyler has been with Marcus & Millichap, he has been a part of over $12 million in nationwide transactions and has solidified his expertise in the Western Markets neighboring the I-80 and I-25 Corridors. Having transacted over $7 million within that market, Tyler has since listed over $18 million and almost half a million square feet of Industrial assets.

Lisa Abdelhalem

Marketing Coordinator

Lisa Abdelhalem specializes in the strategic marketing for the Tashakorian Office & Industrial Advisors, a division of Marcus & Millichap. Born and raised in San Diego, Lisa also attended San Diego State University where she was a member of the Real Estate Society and graduated with a Bachelor of Science degree in Business Marketing.

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