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Real Estate Broker

Operations Manager

John's ability to bring two sides together and structure winning solutions is the cornerstone of his business. In an ever-changing environment, his commitment to his clients is paramount and his methods are calculated, tracked, effective and proven. His close and constant attention to the market and to the factors and trends that affect the people he works with mean less stress, more protection, and more money for his clients at the end of the day.


When you add an unfailing passion to provide the highest level of knowledge, experience, marketing, service, skills, and support that is mirrored with the decision to partner with the most innovative brokerage in the industry, there is no question that you are in the right hands with John and Levin Moncastro Group.


Putting this powerhouse team to work means realizing your goals through an ideal blend of hands-on support and service, experience, knowledge, innovation, and unparalleled exposure in this rapidly changing and critically important industry. Working with John and his team means that no stone will be left unturned and no mile left untraveled on the road to your Success!

In today's competitive real estate market, the key to success is differentiation — doing common things in an uncommon way. In fact, differentiation from the competition has become the cornerstone of service to my valued clients.


We are proud to deliver exceptional property marketing that is designed to attract attention, showcase your property's distinctive qualities, and help your home sell quickly and for the best price. From professional photography to a single-property website, brochure, direct mail, and TV promotion, we ensure that your property is uniquely positioned to sell.


Ready for your next step?


Let’s do it together – call/text/connect with me on Facebook or Instagram


Mobile: 425-305-1061




“I would like to take this opportunity to thank Mr. John Diaz to help us to sale the house. John has been very helpful in helping us selling the house within a short period of time. He is well knowledge in real estate information, provides excellent advice and keeps client well informed of the status of the house. Will definitely recommend him for your real estate service.”

- Andrew Wentang

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