Sin & Grin
Dog rule: BringFido listing: your dog can join you at an outdoor table at the dog-friendly Sin & Grin, a quick and casual Mexican restaurant in Gaithersburg, MD. The menu features tacos, sandwiches, salads, rotisserie chicken, fajitas, burritos and more. Desserts, beer and wine are also available.
Unconfirmed: Third-party only Checked Nov 10, 2026. Source
