An anonymous reader writes: Uber and Lyft have been dealing with a host of legal and regulatory issues, and the Massachusetts attorney general's office is adding one more: disability access. No formal action has been taken, but the office has contacted the companies to see how they handle equal access. Uber says it often speaks with advocates about accessibility, and less than a week ago they introduced uberASSIST, which connects riders with drivers who are specifically trained to assist those with disabilities. Still, the inquiry seems to have been spurred by questions from disabilities rights groups, not to mention ongoing lawsuits. "[T]he National Federation of the Blind of California accused Uber in a lawsuit last year of discrimination by refusing to transport guide dogs. A San Francisco federal judge has said the case can proceed. ... In Texas, Jennifer McPhail sued Lyft last year, accusing the company of not having a wheelchair accessible vehicle operating in Austin."