Okay, so Leila has experience in the field of design, but the specific details about her experience, skills, and industry demand are not provided. Based on national averages for designers in the United States, an experienced designer in Gaithersburg, MD, could potentially charge around $75 per hour. However, this is a very rough estimate and may not reflect Leila's actual rate. Without more information, it's difficult to provide a more accurate estimate.