Okay, let’s tackle this. So Mark Lennon has a diverse skill set in marketing, with expertise in lead generation, CRM, and B2B marketing. He also has experience in SEO, social media, and marketing automation. Location is San Francisco, which is a hub for tech and marketing professionals. According to national averages, marketing professionals with similar skills can charge between $100-$200 per hour. However, considering the cost of living in San Francisco, I'd estimate Mark’s rate to be on the lower end of that range, around $125 per hour. This is also in line with industry benchmarks for marketing professionals with similar experience and skills.