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about cornerstone properties

Professional Oahu Property Management since 1996.

We are an established property management firm that represents the region with quality, professionalism, and knowledge.

Professionally managing homes in Oahu since 1996, we have strong roots in the communities we serve and the experience to handle all your property needs, whether you are needing management services or looking for a quality home to rent.

Meet the Team

Carl L. Frazier
Carl L. Frazier
R, RMP
President, CEO,
Principal Broker
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Carl Frazier, R, RMP, Founder, President and Chief Executive Officer of Cornerstone Properties, and past President of the National Association of Residential Property Managers (NARPM) Oahu Chapter, has been managing quality properties on the island of Oahu for over 20 years. Before property management, Carl spent six years in real estate sales.

As a leading expert in the property management field, Carl is a contributor to the Tenant/Landlord Q&A newspaper articles in the Honolulu Star Advertiser, speaker at the NARPM National Convention, guest on local radio talk shows, and an expert witness in local court cases. Carl holds his RMP (Residential Management Professional) designation through the National Association of Residential Property Managers. As a company, Cornerstone Properties sponsors a child through World Vision and comes together every fall to fill shoe boxes for Operation Christmas Child. Cornerstone Properties is also a supporter of organizations such as Habitat for Humanity and Disabled American Veterans.

Amanda Sato
Amanda Sato
R, MPM, RMP, AHWD
COO, Property Manager
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Amanda Han, R, MPM, RMP, AHWD, Property Manager and Chief Operating Officer of Cornerstone Properties has been with Cornerstone Properties since 2008 and is the eldest of Carl’s six children. She is a Property Manager of close to 200 doors and is also responsible for company operations and employees. Amanda serves on the Government Affairs Committee both the National Association of Residential Property Managers (NARPM), and the Hawaii Association of Realtors. Outside of work, she enjoys making memories with her daughter.

Andrew Frazier
Andrew Frazier
RA
Property Manager
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Andrew Frazier, RA joined the Conerstone Properties ohana in June of 2015. Carl’s third of six children and is one of our Property Managers.

He is active in his local BNI chapter and enjoys hiking, going to the beach, and playing various sports.

Chelsie Teanio
Chelsie Teanio
Office Manager
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Chelsie assists in roles relating to customer relations and communications, tenant move-ins and move-outs, and maintenance requests, among other tasks. She also has over fourteen years of customer service experience. In her spare time, Chelsie enjoys spending time with her ever growing family and her cats.

Linda Simbre
Linda Simbre
Senior Administrator
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Linda has been with Cornerstone Properties for almost 10 years as an assistant to Carl Frazier and works on the GET filings. She is known for being excellent at remembering clients’ and customers’ names. Linda enjoys scrapbooking, and spending time with her family - especially her grandchildren. Linda also has a love for music - particularly Jazz and Latin. Her husband is a local musician and his specialty is the congas and drums. Her hobby is collecting shot glasses from all around the world.

Angela Frazier
Angela Frazier
Senior Administrator
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Angela Frazier is one of our Senior Administrators and assists the property managers. She has been working full time for Cornerstone Properties since graduating from UH Manoa in the Spring of 2020. However, she has been around the property management business her whole life being the 5th child of Carl Frazier.

She enjoys hanging out with friends & family, going out to eat, and relaxing at the beach when not at work.

Shanel Tomisato
Shanel Tomisato
Accounting Manager
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Shanel Tomisato has been with the Cornerstone family since 2008. She is our resident expert of client online accounts and deals extensively with our tenants. She works alongside Leslie in our accounting department and focuses mainly on accounts receivable. On her free time, she enjoys spending time with her husband and 3 children, as well as crafting, baking and running their family business, Koa Athletics. She also loves anything Hello Kitty!

Leslie Sumailo
Leslie Sumailo
Accounting Assistant
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Leslie joined the Cornerstone family in September 2018. Prior to working at Cornerstone she worked at a local bank for 10 years. She works in the Accounting Department and handles accounts payable. In Leslie’s free time she hangs out with her husband and two teenage children. They love going to the beach, watching movies, and hiking. She also loves taking photos, gardening and spending time with her French Bulldogs!

Arthur Frazier
Arthur Frazier
Administrative Assistant
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Arthur Frazier is one of our administrative assistants and is Carl’s oldest son. Arthur has volunteered at several churches in various capacities. Currently on Sundays, Arthur volunteers at his church assisting and teaching Sunday School. Arthur also supports various charities and organizations, such as, but not limited to: Cru.

Aaron Frazier
Aaron Frazier
Maintenance Coordinator
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Aaron Frazier, the third oldest son to Carl Frazier, joined the company in 2015. He is one of our administrative assistants and is a United States Marine Corps veteran. His main focus is maintenance coordinating. He enjoys listening to music, playing board and video games, and spending time with family.

Mariele Alzona
Mariele Alzona
Administrative Assistant
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Mariele joined Cornerstone Properties in 2023 and is one of our virtual administrative assistants. She enjoys adventures in nature with her family during her free time. She loves to go camping and trekking, but most of the time she is in the kitchen experimenting new flavors and dishes!

Leah Diola
Leah Diola
Administrative Assistant
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Leah is one of our Administrative Assistants for maintenance requests. She has been working full time for Cornerstone Properties since December of 2022. She enjoys watching movies and television series at home and singing with her family.

Homes for Rent

Find your perfect place to call home.

If you are looking to rent, we have a top-notch inventory of houses, condos & townhomes for lease. You can be assured of a high level of professionalism and quick maintenance response.

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Property Management

Maximize your investment’s potential.

Cornerstone Properties is a full service real estate and property management company, and we are proud to offer exceptional management and rental services in most cities across O’ahu. We also offer leasing only options. Contact us today!

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Tenant Portal

Pay rent & submit maintenance online.

You will love being a Cornerstone Resident! We offer convenient tools to easily pay your rent & submit maintenance request online - everything you need right at your fingertips!

Tenant Portal

TRUST US TO MANAGE YOUR INVESTMENT

Contact us today for a free rental analysis.

We maintain membership in the following organizations, which help us to constantly increase our abilities and professionalism:

National Association of Property Managers National Association of REALTORs BNI Hawaii RMP Logo Expertise logo At Home Diversity Green Designation EPA Logo ARM Logo 2023BadgePP Logo Green Logo Partner2024 Partner2024
Cornerstone Properties

Providing exceptional property management in O’ahu since 1996!

  • 99-122 Hapuku Street
  • Aiea, HI 96701
Phone: 808.484.1211
info@cornerstonehawaii.com

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