Meet Our Team


Bob Preston - President and Broker/Officer

Bob Preston

President & Broker/Officer, MBA, CPM®

Bob Preston is the owner and founder of North County Property Group. Bob first obtained his California Real Estate license in 1986. He has been a part of the Del Mar community as a North County San Diego homeowner, resident and business owner since 1998.   Bob enjoys working with his clients to share his knowledge of this amazing community, specializing in the greater North County San Diego real estate market. Bob is a licensed California Real Estate Broker (CA BRE #00919073), General Contractor (#892437), and REALTOR member of the North San Diego County Association of Realtors (#181799). With over 25 years of experience as an owner of his own investment properties, Bob has built North County Property Group from his own real estate experiences, fulfilling the unique needs of residential investment property owners and their renters/tenants. Bob earned a Bachelor of Arts degree from the University of California, Santa Barbara, an MBA from the University of California, Irvine, and an executive education certificate in Growing Entrepreneurial Companies from the Graduate School of Business, Stanford University. He has further obtained his CPM® designation from the California Association of Realtors which recognizes professionals considered experts in real estate management.  View Bob’s profile on LinkedIn:


Lead Property Manager, Lea Quackenbush

Lea Quackenbush

Senior Property Manager, ARM

Lea Quackenbush is North County Property Group’s lead Property Manager, responsible for day to day coordination and supervision of our property portfolio of both long term and vacation rentals. She is native to North County San Diego having grown up in Encinitas, CA. Lea possesses her CA Real Estate license (CA BRE # 01981767) and is highly experienced in all aspects of residential property management, leasing, and tenant relations. She is joining us from FBS Property Management where she managed 160+ San Diego area residences as Property Supervisor. Lea also has previous hands-on experience with vacation rentals as a Property Manager for San Diego based Captial Asset Management as well as a background in Operations/Customer Service at both Nordstrom and Four Seasons Resorts. Open communication, tracking financial accountability and industry expertise are all part of the partnership Lea brings to our property owners and tenants. Lea earned her Bachelor of Arts degree in Social Sciences from San Diego State University. She has also earned her Accredited Residential Manager (ARM) professional designation with the Institute of Real Estate Management, recognizing top property management professionals who have excelled as reliable, knowledgeable, and ethical practitioners.


Trevor Brzezniak - Associate Property Manager

Trevor Brzezniak


Property Manager

Trevor Brzezniak (CA BRE #02024559) joins North County Property Group as its Associate Property Manager, responsible for assisting in the various management aspects of our property portfolio, answering inquiries from prospective tenants, showing properties to interested parties, and facilitation of the application-to-lease process. He is native to the Carmel Valley area of North County San Diego. Trevor’s previous real estate experience includes commercial office and industrial space tenant representation with Cresa Partners, San Diego, CA. He has also worked in various sales and marketing roles. Trevor received a Bachelor of Business Administration degree in Finance & Real Estate from Texas Christian University.



Olesya Williams - Leasing Agent

Olesya Williams

Leasing & Booking Agent

Olesya Williams (CA BRE #01948723) is North County Property Group’s leasing agent and vacation rental booking specialist. Olesya assists with the leasing of properties through showings and walk-throughs with prospective tenants. She is also the primary interface to parties inquiring about booking reservations for our vacation rental portfolio. A native of Russia and of course fluent in Russian, Olesya is continuing her studies toward a degree in Real Estate and has previous sales and customer service experience since 2001.





Lana Bryndina, Accounting Manager

Lana Bryndina

Accounting Manager

Lana Bryndina is the accounting manager at North County Property Group, overseeing all aspects of property and trust accounting, financial analysis, and reporting. She is a highly experienced full cycle accounting professional with an exceptional understanding of accounting principles and policies. Lana also has specific experience in Real Estate and Property Management having worked in asset and investment management firms. She earned her B.S. of Economics and Management from Priazov State Technical University in her native country of Ukraine and an Associates Degree of Accounting from Irvine Valley College. Lana is also a Certified Bookkeeper member of the American Institue of Professional Bookkeepers.



Darin Shelstad, Marketing Coordinator

Darin Shelstad

Marketing Coordinator

Darin Shelstad is responsible for the company’s marketing and communication activities as its Marketing Coordinator. His responsibilities include publishing property listings to Real Estate websites, outbound email & digital marketing campaigns, company Social Media and Blog posts, and print media management. He possesses exceptional proofreading skills, has a high degree of attention to detail, and is savvy in most digital marketing software programs. He has lived in many different parts of the country, including Hawaii, and enjoys associating with people from many different cultures and backgrounds. Darin earned his B.A. in Journalism/Advertising from the University of Oregon.



Shanda Macomber

Shanda Macomber



Shanda Macomber (CA BRE #01455514) is the Transaction Coordinator for North County Property Group, assuring our clients that contracts and paperwork are completed properly and according to CA Bureau and Real Estate laws and regulations. There are many mandated disclosures, contingencies, and processes that need to be followed in any real estate transaction. Shanda makes sure we do not miss a step. She is a native of North County San Diego and has been in the real estate field for over 15 years, having helped facilitate thousands of transactions over her career.



We are a leader in Del Mar property management and North County property management throughout the greater San Diego coastal area. Let us show you why!

Getting started is simple. Call or email us today to arrange a free property walk-through and receive a personalized home care or property management plan.

Check out our sister vacation rental site at and follow North County Property Group on our BlogFacebookTwitterYouTubeGoogle PlacesLinkedIn, and Yelp!

Contact us today: (858) 792-5797, or go to the Contact page