About Us

In 1960 Barbara Marquardt opened her own Real Estate office- "Marquardt Realtors". This came after working for many years in Real Estate while a single mother raising her 5 daughters. Barbara was dedicated to creating opportunity in her community for everyone to have equal access to real estate - working in the industry and/or investing in our neighborhoods.

Over the years "Marquardt Realtors" embraced and promoted rental housing in the community. In the 70's Barbara shifted her focus from sales to property management. She understood the importance of assisting clients with optimizing their investments in rental properties-to providing our community with desirable, clean and affordable rental housing. Marquardt "Realtors" became "Marquardt Property Management" in the 80's as the office dedicated itself to property management.

Barbara served as director with the Oakland Board of Realtors and as President of the Women's Council of Realtors. She stayed engaged and involved with the Oakland Public schools as each of her daughters traveled thru the school system, while working at the office and volunteering in the community. Although Barbara officially retired in 1989 she continued to be a part of the family business that her two daughters continued to maintain as their mother had.  On April 11, 2003 Barbara passed away. Barbara's passion for public service continues with the generations of her family who remain dedicated to the business.

Marquardt Property Management adheres to the dedication and values that Barbara built the business on more than 57 years ago. We are a family business, and our clients are part of our family.


Karen Marquardt is partner and owner, along with her sister Judi, of Marquardt Property Management.  The office was initially opened, owned and managed by Karen and Judi's mother, Barbara in 1960.  Karen grew up in the office and got her Real Estate Sales license in 1975, when she was 18 and got her broker’s license in 1989.  Karen took over primary management of the office in 1990 when her mother retired.  Judi joined and became partners in 2000.

Over the years, Karen has had hands-on experience in all aspects of management, including performing on-site repairs, city inspections, meetings with city and private attorneys, appearing at Rent Board, and in court representing clients.  She feels that establishing relationships with clients and tenants helps in more successful long-term property management results.

Karen manages single family residences, condos, apartments, and commercial buildings. She is available to meet with clients by appointment and is proactive in managing property for the best results.  Her 43+ years of experience make her adept at reviewing contracts brought in by owners provides expert advice on obtaining the best price for the market conditions with a long-term view.  She has a hands-on approach to management which is beneficial to both clients and tenants.

Karen graduated from Chabot College in 1993 and received a BA in Business Administration from Holy Names University in 1996. Karen is also a licensed Notary Public.

Karen is a native Californian and has been in the East Bay since she was a toddler.  She attended Oakland Public schools and graduated from Skyline in 1974. She is married with two grown children and two grandchildren.  In her spare time, she is an avid artist, jewelry maker, fabric artist and quilt-maker.  


Judi Marquardt is partner with her sister Karen of Marquardt Property Management. Judi grew up in the office and received her Real Estate Sales license in 1980, and brokers license in 2000.

Judi attended Merritt and Laney College, focused on Real Estate and community involvement. Judi is past president of East Oakland Rotary, and co-founder of City of Oakland, Camps in Common.

Judi was born and raised in Oakland. A graduate of Skyline High in 1980, her 4 grown children also all graduated from Skyline. She is committed to volunteering at community outreach and empowerment events. In her spare time she enjoys riding her Harley with her husband, and sharing time with her family and friends.


Nicole Norris represents the third generation of Marquardt Property Management. Nicole grew up in the office and received her Real Estate Sales license in 2005 and Broker’s license in 2008.

Nicole is a Property Manager and Notary public at Marquardt. Her banking and financing experience provides our clients with expertise in sales and purchases of investment properties. These services are offered through her own brokerage Venture One Properties.

As a native Oakland resident, Nicole continues to enjoy and expand in the community. In her free time, Nicole enjoys the outdoors and spending time with family.


John brings 30 years of Silicon Valley Technical and Management experience to Marquardt.  John is responsible for Customer Service, IT, Operations, and Program Office at the company.  John is also a Notary Public.

Prior to joining the team at Marquardt, John held Senior Management and Director positions at Salesforce, Dell, Brocade, Nortel Networks, Bay Networks, and Intergraph where he managed various global customer service teams serving Fortune 100 mission critical businesses and clients.

John is a 9-year veteran of the US Navy who served in the submarine force and trained submarine crews in submarine warfare tactics.

John is a native of the East Bay and continues to live in the area.  He is married with a family.  Away from work, he is a lifelong musician and avid photographer.


Joanna started working at Marquardt when she was 13 years old: filing and answering the phones on Saturdays. She progressed over the 27 years of working at Marquardt to assisting with all aspects of property management.

Joanna is the person you will encounter usually in the front office.  She is the point person for taking calls, handling repairs, accounting and, of course, the dreaded filing.

Joanna was born and still resides in Oakland.  She is on the board of the Laurel Business District.

Joanna has four children and her youngest is 13 years old, and is a grandmother.  Joanna is an advocate for Special Education within the Oakland Public School System.  She Is very interested in Autism and with special needs children.

In her limited spare time she hosts and owns the Country Nights Women’s Dance. She is an avid quilter, reader, jewelry maker and does many textile arts. She loves to talk to people and has many interesting stories.


Alysia works part time in the office while continuing her education. She recently graduated high school and was the only student in her graduating class to receive full scholarships to California Community College and California State University.

She does light clerical work, filing, answering phones. and writing receipts at Marquardt.

Alysia has set many goals for her life and we as an office are here to support her, on her journey.  She is planning on working more hours over the summer and is excited about learning new things. Her sunny disposition is a positive addition to our team.

Alysia enjoys creating art and reading.