Looking for Creative Designers to build us email campaigns that convert

We are a house cleaning referral agency and we're in this business for over a decade now. We had over 10,000 customers across the US and we are steadily expanding and opening more locations to the east.

For this project, we have a list of potential customers on file and we want you to build out email campaigns and follow up emails from scratch. We want you to be our creative thinker & designer for building and writing contents that you think can convert our potential customers into real customers, and convert our current customers into recurrences, either weekly recurrence cleaning, bi-weekly or monthly. We're looking for someone that knows AB testing, that can do graphic design using Photoshop or Illustrator, and someone that can do basic HTML, though this is optional. We will help you convert your design into HTML so you don't have to worry on this one.

Our questions are:
1. How much do you charge per email campaign?
2. Do you know how Active Campaign works?
3. Have you sent out email campaigns before?
4. Which email marketing service(s) were you using?
5. Can you design email campaigns that look good on both desktop and mobile devices? and how?