At Siegel & Co., we have taken pride in managing every property as if it were our own since 1993.
We optimize performance and profitability through local market experience, effective collection enforcement, establishment of performance standards for contractors, encouragement of price competition among vendors, and intensive analysis of fixed costs, including utilities and insurance.
From budgeting to making mortgage loan payments, Siegel & Co. helps manage your investment property in all aspects, saving you time and money to focus on what you do best.
Doug Holton
Doug’s involvement in the real estate industry began in 1987 in the Bay Area as an in-house regional manager for an investment group. He was then drawn to relocate to Fresno by a supervising Property Manager position at Pearson Realty. Additional experiences including commercial property sales and leasing, banking, and SBA lending provided knowledge he can apply to the business of managing for investment clients. It has also allowed Doug to create many friendships and associates within the local industry that he still enjoys and values today.

In 2007 Doug was asked to join Dave Siegel, with whom he had done business for several years, as a partner in the business that Dave had begun and grown into a significant provider of property management services. As Dave has transitioned into retirement, Doug is fully involved in all administrative and operational aspects of Siegel & Co.

After receiving his Business Management degree from Santa Clara University, Doug has established roots in Fresno and loves to visit his son and daughter who have settled in Oregon and Washington.

Mindy Gaither
Vice President of Operations

Mindy Gaither has been the Director of Residential Management at Siegel & Co. since 2012 and has more than 18 years of experience in the property management industry after managing retail businesses for more than fifteen years. She specializes in the multifamily industry – overseeing multiple assets, client relations, human resources, staff development, rehabs including Section 8 and troubled properties, business development, and financial/budget forecasting.

Mindy is a long-time active member of the Greater Fresno California Apartment Association (CAA), a statewide organization that promotes ethical practices and professionalism in the industry and serves as an advocate for its members in dealing with State agencies. She was awarded the CAA’s Mark of Distinction’s Supervisor of the Year in 2016.

Mindy’s clients, staff, and residents know that she will do what it takes to get the job done, including managing improvements, lease renewals, and handling special circumstances. Mindy loves helping others, showing them how to be successful with both short and long-term goals. She treasures her family time with her husband and three children. Mindy hopes she passes her passion of helping others and striving to be a better person and achieve goals on to her kids.

Nina Lee
multifamily regional supervisor

Nina Lee started in Property Management in 1998 as a part-time Property Manager. She had an immediate love for the industry and moved around as a floater, filling in wherever needed to expand her knowledge and career in all aspects of the industry. Her management experience now includes Conventional, Public Housing and Tax Credit communities. Nina seamlessly joined the Siegel team in January 2020 as the Multifamily Regional Supervisor. In this role, she is responsible for overseeing the Siegel apartment portfolio by directing the on-site teams, implementing policies, and enforcing initiatives satisfaction. We are proud of the staff training and loyalty that comes with Nina’s work.

Nina moved to affordable Madera from Ventura County to buy a house for her family including a new rescue dog, all of whom keep her on her toes. Nina’s laugh and sunny disposition make her a valuable member of the staff in a tough business.


Kelly Garrison
Commercial Property Manager

Kelly Garrison is a Fresno native with Property Management running in her veins thanks to her mother’s own career. After graduating from law school and working as an attorney, Kelly decided to pursue an alternate path and found a career and her roots in property management. For the last 15 years Kelly’s management experience includes work with an institutional REIT, a regional owner of retail centers, and a local owner/developer managing retail centers, commercial office buildings, and historic downtown high-rises. Starting in 2020 Siegel & Co. has been especially lucky to have Kelly’s extensive background with the Yardi Voyager system and her mentorship attitude.

Another Siegel & Co. dog lover, Kelly sneaks away from her four-legged family most weekends to Central Valley golf courses to spend time with friends chasing a little white ball around the course.


Marlene Quinonez
Commercial Property Manager

Marlene is another local Valley talent who started her career in real estate with Siegel & Co. back in 2004 at a multi-family site as a leasing agent. It is there that her interest was sparked to pursue a real estate license and grow within the industry. Moving from leasing agent to assistant property supervisor and realtor along the way, Marlene has managed a very diverse portfolio including independent student housing. In 2019 Marlene made her way back to Siegel to apply her 16+ years of experience and financial skills to a commercial property portfolio consisting of retail, industrial and office spaces. 

Marlene enjoys facing new challenges every day and aims to provide excellent customer service to our clients and tenants. During off time Marlene enjoys spending time with family, traveling, and being outdoors.

Taylor Hernandez
Commercial Property Manager
Taylor is one of Siegel and Co’s experienced Commercial Property Managers with over 15 years in the industry. She started in real estate in the Bay Area and relocated to the Central Valley 12 years ago. After beginning in an administrative position, she quickly worked her way up to an Assistant and then achieved her goal of becoming a licensed Property Manager. She has handled all of the management operations for commercial, single family, and multi-family properties. She also has experience in real estate sales, leasing, rehabs, and marketing. She prides herself on achieving the goals and objectives of her clients and is proficient in tenant/landlord relations.

Taylor previously worked for Siegel & Co. and after gaining from other experiences we all decided she should come back to our team in February 2017. She has four children whom she adores and strives to make sure they achieve and accomplish all that they can to be successful.

Katelyn Sawl
Commercial Property Manager
Katelyn started her professional career as a project manager for an emergency solutions company and later transitioned into property management. She began her career in real estate as a property manager for a private investment firm where she managed commercial and residential assets. She performed many duties including administrative, sales, acquisitions, and asset renovations. With the desire to expand her portfolio and grow her career, she joined Siegel & Co. as a Property Manager in March 2019. Katelyn takes pride in building long-term business relationships with both her clients and tenants. With tenacity and dedication, Katelyn is committed to getting the job done.

Katelyn belongs to several professional real estate associations, including the National Realtors Association (NAR), CAR, and FAR. In her spare time, she enjoys traveling, cooking, kayaking, and spending time with loved ones (including her “fur babies”).

Dave Siegel, Founder of Siegel & Co., and our other Partner Roxean DeFendis, have earned the right to have reduced roles in the day-to-day operations of the company from the comfort of the Central California coast.  The internet provides them plenty of opportunity to monitor the cloud-based accounting and management system we use for all the properties.

You deserve focus on your investment. Leave it to us.