While all staff members are trained in removing subjects from contact lists, COO Robin Bogin said, you can also send a message to an aptly named email address meant to deal with complaints about the frequent flyers: optout@marketprohomes.com. MarketPro occasionally sends text messages but never calls without permission, co-founder Danny Bronstein To opt out of text messages, you can contact the organization. Seven groups Public Integrity contacted for this story either declined interview requests or did not respond to requests for comment.