Mio Sullivan has been an amazing agent who worked with us for several years to help find our dream home. Few homes in Oakland met our special needs and we despaired in ever finding a suitable home to buy. Mio kept telling us we would find one and kept showing us more and more homes. It worked!!

Mio was outstanding and very professional. She was very understanding and flexible as the process of selling the house progressed. 5 star performance for Mio, Mark and everyone at Red Oak Realty.

Mio Sullivan was terrific to work with during my house purchase. She was always available to tour homes with me, to take my phone calls and questions, and to share her expertise of the housing market and current trends. The entire process was so professional with her and Red Oak Realty. Mio is very knowledgeable and an excellent, patient advisor. These traits are so valuable when you are making such big life and financial decisions that are part of every house purchase. Even the paperwork, which is voluminous in every real estate transaction, was made a lot simpler by Red Oak Realty by the use of their modern/electronic process for reviewing and signing documents. Much less arduous and tedious than in years past! I highly recommend Mio and Red Oak Realty as your agents. Mio is very diligent, thorough, and detail-oriented. She has high integrity and professionalism, and she truly cares about her clients.

We had an absolutely outstanding experience working with Mio on the purchase of our new home in El Cerrito. From the very first showing to the final signatures at closing, she was unfailingly responsive, deeply knowledgeable, and impressively proactive. Even on a tight timeline, Mio guided us through showings, negotiations, inspections, and escrow with seamless precision and genuine care. What truly set her apart was her talent for spotting potential issues before they became problems and presenting calm, practical solutions on the spot. Her local expertise and meticulous attention to detail gave us complete peace of mind throughout the entire process. A major bonus for our family was Mio’s ability to communicate in Japanese. Complex real-estate jargon and last-minute negotiations were suddenly effortless, and we always felt 100 % clear on every decision. She was equally considerate of our schedule—whether we had toddlers in tow or needed evening calls after bedtime, Mio adapted without hesitation and kept stress to a minimum. Mio also connected us with top-tier specialists for financing, insurance, and other services. Each referral was prompt, professional, and—importantly—offered without any pressure, giving us confident, well-informed choices at every step. Thanks to Mio, we’re now happily settled in a home we truly love. If you’re looking for a realtor who combines expertise, foresight, and genuine client care, look no further. We recommend her more highly than words can say!

Mio Sullivan is simply awesome. She was quick with answers and follow up. Proactive communication with listing agent and mortgage and title company. Extremely helpful and knowledgeable!

Excellent realtor! Highly recommend Mio Sullivan.

Mio was our buyer and seller agent. She was very friendly, supportive, and informative. We were first time sellers and a lot of remodeling was involved before selling our house. However, thanks to Mio's help and guidance, we were not lost or anxious. We really appreciate her preparing our house as if it were her own. Everything was on time because of her prompt scheduling and arranging workers. She communicated for everything, and responded to our questions and requests quickly. Also she always answered our calls. If she was busy because of her meetings or other schedules, she messaged me right away. We never had to wait for her response. We felt so lucky to have her as our buyer and seller agent. We would miss her. Thank you so much!