Okay, let’s break this down. Maggie has 19 years of experience in interior design, which is a significant amount of time. She’s also the owner of her own design firm, which suggests she has a strong business acumen. Location is Miami, Florida, which is a competitive market for interior designers. Considering her experience and skills, I would estimate her hourly rate to be around $75, which is on the lower end of the scale for interior designers with similar experience. This rate is also influenced by the fact that she’s not a senior designer or architect, but rather an owner of a design firm. Some interior designers in Miami with similar experience might charge $100-$150 per hour, but Maggie’s lower rate reflects her role as a business owner rather than a high-level designer.