Cathy O'Toole is a Broker Associate with Christie's International Real Estate Lonestar, serving buyers and sellers across the Dallas-Fort Worth metroplex for 16 years. She works two distinct lanes — luxury properties and first-time homebuyers — giving her a rare span across DFW's market, from a client's very first home to seven-figure estate sales.

Licensed since 2010, Cathy has closed 207 transactions totaling $240 million in sales volume across Coppell, Southlake,Flower Mound, Keller, Roanoke, Trophy Club,Farmers Branch, Dallas, Lewisville, Carrollton, Lake Highlands, Preston Hollow, Corinth, Denton. As part of Christie's International Real Estate Lonestar, she combines a globally recognized luxury network with the kind of hyperlocal market knowledge that only comes from 16 years on the ground in North Texas.

For luxury clients, Cathy manages every detail of high-value transactions, from private showings to coordinating with private equity and financial advisors on complex closings. For first-time buyers, she walks clients through every step of the process, from pre-approval to closing day, translating the jargon and demystifying what's often the largest purchase of their life.

Cathy's business is built almost entirely on repeat and referral clients, a track record she credits to treating every transaction — first home or luxury estate — with the same integrity, hard work, and hands-on attention. Clients consistently point to her deep North Texas market knowledge and genuine investment in the community as the reason they come back to her, and send their friends and family her way. "Cathy was amazing! She went over and above to help us find the right property and quickly set our contract and negotiations. Everything about buying a house can be so stressful and Cathy was so calm, collective and professional. After finding the home of our dreams, she made it happen. I would recommend her to  ANYONE!!!" C.& D.