About Castle Management

Founded in 1986, Castle Management has been helping rental property owners in the Bay Area succeed for decades. Our team is committed to providing you with the highest quality care possible.

Owning a rental property comes with a number of responsibilities to look after. Whether it's rent collection or responding to your tenants' maintenance requests, it can often be overwhelming at times. Luckily, that's where we come in!

By working with us, you will finally be able to enjoy your free time. We will handle all your responsibilities for you.

Our team is ready and excited to take on all of the responsibilities that come with owning a rental property, and we will do each and every one of them with excellence.

We currently service the areas of Walnut Creek, Concord, Sunnyvale, Fremont, Richmond, Pittsburg, Martinez, Livermore, and Fairfield.

At Castle Management, we can manage single-family homes, multifamily homes and apartments, as well as commercial buildings like shopping centers and office buildings.

Our experience and expertise make us more than qualified to meet all of your property management needs. With 1750 doors currently managed, our team of skilled professionals is prepared to take on any problem that may arise, all while helping you increase your income every month.

Fulton Drive Commercial Property

Why Choose Us

Our dedicated team has been serving our community in the Bay Area for decades. In that time, we've been able to help countless property owners thrive with their rental properties, and we are confident that we can do the same for you.

Our mission is simple: We want to maximize the value of your investment.

Here are our values:

  • We honor the worth and dignity of each property, owner, resident, tenant, employee and vendor.
  • At Castle Management, we conduct our business and provide guidance and direction for our managers and employees, led by a set of fundamental values. These values result in an atmosphere of trust, honesty and respect, recognizing that all are important.
  • We strive to promote a professional dynamic and joyful working environment. Through education and training, we encourage all of our employees to achieve the highest potential for themselves, their property, Castle Management and their community.
  • We promote a spirit of "pride of ownership," and encourage creativity, responsibility, accountability, and teamwork.
  • As dependable and loyal stewards, we have a strong responsibility to our property owners to protect their assets and to achieve optimum growth and earnings through our ethical and sound business practices on their behalf.
  • We believe in strategic planning to further refine our target market parameters and attract properties that are a match for our values, expertise and proven management methodology and structure.

Here at Castle Management, we know that every client, property, and tenant is unique. We know that when it comes to property management, a one-size-fits-all approach just won't cut it.

Whether it's a commercial property or a residential home, we want to know what your specific property management needs are, and we will work tirelessly to complete them.

If you hire us, expending your free time and energy on your property will be a thing of the past. Whenever there is an issue, our in-house maintenance team is here to ensure that your rental property remains in top shape, all while saving you time and money.

Our mission is to respond to every maintenance request quickly and effectively, ensuring your tenants stay happy and your property avoids further damage. Under our care, small repairs will never be overlooked, and we will be available 24/7 in case of emergencies.

castle team photo

So, what are you waiting for?

When you hire Castle Management, you can be sure that all of your properties will be looked after diligently, and every job will be done with excellence. If you're ready for you and your rental properties to thrive, contact Castle Management today!

Meet the Team

James F. BaldacciHeadshot

James F. Baldacci


James is the President of Castle Management and the CFO of Castle Construction Company and affiliated entities. James earned a B.S. in Physics with a minor in Mathematics from Santa Clara University in California, graduating in 1987. He is a licensed real estate broker and general contractor. James’ leadership has made Castle Management a premier service organization that never loses sight of its clients’ best interests.

Joseph Lawton, C.P.M.Headshot

Joseph Lawton, C.P.M.

Executive Vice President

Joseph controls the full scope of the property management operation. He earned a B.S. in Business Administration in 1981 from Saint Mary’s College in California. Joseph is a California licensed real estate broker.

He is very active in the California Apartment Association (CAA), and has acted as the local Contra Costa County Division Chairperson and served on the California State Board of Directors. For 2017, he is serving as President of CAA. In addition, he is a member of Institute of Real Estate Managers (IREM). Through IREM he has earned the prestigious Certified Property Manager (CPM) designation.

Joseph maintains the highest standards on behalf of the owners and demands the best from each member of the Castle Management team.

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Jamie Lue

Vice President, Commercial Operations

Jamie oversees portfolios consisting of office, retail, and industrial real estate. She helps to develop monthly financial statements, negotiates Lease terms, manages CAM billings, generates yearly budgets and oversees the day-to-day operations of the company’s professionally managed commercial assets.

Jamie also specializes in overseeing and managing tenant-improvement projects and build-outs from permit to completion. She takes pride in being detail-oriented and upholding the company motto of honoring the worth and dignity of each property owner, resident, tenant, employee and vendor. She strives to maximize profitability at each asset, while maintaining steady tenancy.

Jamie has been with Castle Management since 2012 and transitioned from her role in residential management to commercial property management. She earned a B.A in Communications and Public Relations from California State University, Chico in 2011. Jamie was awarded as one of the Top Leaders under 40 through ICSC Centerbuild in 2020 and is currently an active member in several Commercial Real Estate associations such as ICSC, IREM, BOMA Oakland/East Bay and sits on the board for AFE’s NorCal Chapter.

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Miriam Swernoff

Commercial Portfolio Manager

Miriam Swernoff brings a wealth of knowledge in commercial and industrial property management to her position as Commercial Portfolio Manager. She oversees a wide range of properties including commercial, industrial, automotive, medical and retail. Miriam excels in managing tenant and vendor relations. She is also well versed in CAM Analysis, budgeting, and leasing.

Miriam has a Bachelor of Arts from Rutgers College and a Juris Doctor from George Washington University. Miriam is also a licensed California attorney. In her time away from the office, Miriam enjoys running, TRX, cooking and sewing.

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Alexandra Baldacci

Commercial Assistant

Alexandra joined Castle Management in 2022. She brings with her a positive attitude, enthusiasm, and 3 years of customer service experience. She started off in Accounts Receivable and is now enthusiastic about joining the Commercial department! Alexandra is excited to continue to grow within the company, learn new skills, and apply her knowledge and experiences to her new Commercial Assistant role.

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Adam Pitzler

Residential Portfolio Manager

Adam Pitzler had nearly a decade of supervisory experience working at over a dozen different residential management facilities throughout Spokane, Washington and Portland, Oregon before joining the Castle Management team in late 2012. He has extensive training and experience dealing with every aspect of real estate management, including, but not limited to: all vendor relations, supply chain management, move-in/move-out inspections, leasing, budgeting, marketing and tenant relationship management. Adam holds a Master’s Degree in Business Administration (M.B.A.) from Eastern Washington University, bachelor’s degree in finance, and is a licensed real estate agent in the State of California.

Brett Starczewski, C.P.M.Headshot

Brett Starczewski, C.P.M.

Residential Portfolio Manager

Brett provides a wealth of knowledge and experience with respect to operations and financial asset management. He has more than 17 years of experience in multi-family property management and has held various positions throughout his career. Brett has extensive knowledge of various markets throughout Northern and Southern California and has managed portfolios ranging from 416 units to just over 2,900 units.

Brett earned a B.S. in Economics and Business Administration from St. Mary’s College in 1994. He is a member of the Institute of Real Estate Managers (IREM), and holds a Certified Property Manager (CPM) designation. He is also a licensed California Real Estate agent.

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Monica Alcazar

Residential Portfolio Manager

Monica was born and raised in Silicon Valley, and planted her roots in Contra Costa County in spring of 2020. As the newest addition to the Residential Portfolio Manager team, she brings insightful on-the-ground experience from her time as an on-site Property Manager, as well as valuable legal knowledge and training.

Monica earned her B.A. from Stanford University and a Juris Doctor from the University of California College of the Law, San Francisco (formerly UC Hastings). She is a California Certified Residential Manager, and also a Notary Public.

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Tracy Barsell

Residential Portfolio Manager

Tracy is a California native and grew up in the Bay Area. Strong ties to her community have enabled her to develop a network of vendors and contractors across the Bay Area. She has over a decade of leasing and managerial experience and currently manages a portfolio of single family homes.

Tracy has received recognition for increasing revenue, cutting costs, exceptional customer service, and leasing skills. Her accomplishments reflect her determination to go above and beyond in pursuit of surpassing expectations. Tracy believes integrity and building respectful relationships is the cornerstone to success.

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Lisa Wood

Residential Portfolio Manager

Lisa Wood joined Castle Management in 2018. Her education in Real Estate started at an early age. She comes from a family of real estate brokers, property managers, owners and investors. Lisa managed her first property in Santa Clara and today manages a wide variety of properties that include Single Family and Multi-Family properties with high satisfaction for both owners and tenants.

Lisa is committed to working together with others in a team relationship and atmosphere. It is important for Lisa to strive for win/win results if at all possible. It is of particular delight to see difficult and challenging circumstances turn into positives for all that she serves.

First and foremost, in her life are her family and Siberian Husky/German Shepherd, Sasha. She enjoys spending time with them and celebrating the events in their lives.

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Macy Martinez

Human Resources

Macy joined Castle Management in 2022. She has always had a passion for corporate & employment law as well as operations. She is a member of the Society of Human Resource Managers (SHRM), Cal State University, East Bay Chapter & a member of Professionals in Human Resources Association (PIHRA). Her desire to lead people in the right direction & advocate for employees has created opportunities & a career in Management & Human Resources. Macy is so excited to start her journey & be a part of the Castle Family.

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Michelle Rumsey

Accounting Manager

Michelle joined the Castle Management accounting team in 2019. As the Full-Charge Bookkeeper, she leads the accounting department with monthly financial reporting and audits of all business accounts.

Michelle brings her knowledge and expertise from a career in public accounting with bookkeeping, accounting and operations management experience. She has experience working with multiple clients while providing excellent customer service. Michelle is also a QuickBooks Pro Adviser. In her spare time, she enjoys spending time with family, cooking and being outdoors.

Tatiana KhenHeadshot

Tatiana Khen


Joined Castle Management in 2023. Tatiana earned a B.S. in Accounting and Finance and M.S. in Taxation from the Golden Gate University, San Francisco in 2012. She has over 17 years of work experience in the construction company as a Full-Charge Accountant. Tatiana is also a QuickBooks ProAdvisor.

She enjoys spending time with her family and traveling.

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Reese Callaghan

Accounts Receivable

Reese joined Castle Management in 2022 as our Accounts Receivable, she came to our team with over 2 years of experience. She handles all incoming rents for all Castle Management tenants. She is excited to be a part of the Castle Management team & looks forward to continue growing with the company. Reese enjoys reading, problem solving, & being a team player. She is a Bay Area native & enjoys outdoor camping, hiking, being with friends & family, & of course, her dogs.

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Sandra Hernandez

Accounts Payable

Sandra joined Castle Management in 2023. Sandra holds a degree in Business Administration with an emphasis in accounting, from Health College, where she gained a solid foundation in accounting. Sandras academic background combined with experience, has equipped her with understanding of financial principles and best practices.

Sandra’s journey in the branch of accounts payables has prepared her with a keen eye for detail and a commitment to maintaining the highest standards of accuracy.

Beyond Sandra’s professional life, she enjoys spending time with family, cooking and reading.

Sandra is excited about the opportunity to bring her skills and expertise to Castle Management, where she can contribute to the financial success of the organization.

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Grace Dou

Asset Manager

Grace joined Castle Management in 2023 with 8 years of experience in commercial real estate. As an Asset Manager, she oversees the financial activities and evaluates the performance of the portfolio, provides thorough analysis and insight on the assets and potential acquisition opportunities, and creates and implements investment and divestiture strategies. Her responsibilities also include coordinating acquisitions and dispositions, conducting due diligence, projecting and managing cash flows, and reviewing operating/financial reports as well as budgets.

Prior to joining Castle Management, Grace worked as a Senior Asset Management Analyst at L&B Realty Advisors, where she led the preparation and execution of business plans, valuations, leasing analyses, and market research for a portfolio spanning over 3.7 million square feet and valued at $1.7 billion.

Grace received her Master of Business Administration in Finance and Real Estate from the University of Texas at Dallas and her Bachelor of Science in Finance from Beijing Technology and Business University. She is a level III candidate of CFA (Chartered Financial Analyst).

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Stephanie Martinez

Administrative Assistant

Stephanie joined Castle Management in 2021. A Bay Area native, Stephanie was the first in her family to graduate from college with a Bachelor’s Degree in Business Administration from CSU Los Angeles.
Stephanie provides administrative assistance to our bookkeeping staff as Castle Management continues to grow. She is driven, goal -oriented, and committed to reaching greater heights in her career and personal life.

On her off time, she likes to practice a healthy lifestyle through exercising, reading books, meditating, and spending time with family, friends, and her pets.

In-House Maintenance DepartmentHeadshot

In-House Maintenance Department

All properties are maintained by our on-site staff and in-house maintenance department. Their education and talent allow us to save time and money by completing maintenance and turnover requests in-house. Issues with plumbing, painting, carpentry, appliance repair, and HVAC can be resolved with our staff in lieu of hiring outside vendors. The In-House Maintenance Department has two fully equipped vans and all maintenance professionals carry cell phones to keep them in touch with our main office, on-site managers, and tenants in the event of an emergency.