Address: 430 E I St Unit F Unit F, Ontario, CA 91764... Phone: (909) 855-3153... Website: https://designatedlocalexpert.com/ontario/... Hi, we’re Roy and Marly Williamson, your trusted real estate agents in Ontario. We specialize in buying, selling, and investing in residential properties. Our priority is ensuring you feel supported, informed, and confident throughout the process. Let’s work together to achieve your real estate dreams with ease and success.