starting a new business

I'm in the process of starting a new business, and I'm looking for support to make sure it's successful. The business I'm starting is a cleaning service. I have a business plan in place already, but it needs some refining. I'm looking for someone to help me with all the things I need to do to make sure my business is legal, secure, and profitable. Specifically, I'm looking for expertise in marketing strategy, financial planning, and overall business strategy.