The first line of your initial message has me worried. You have ideas and cannot see them through.
In view of that, you have to justify to yourself that you will see this through before you go any further. There will be discouragements before you ever get the first newsletter out to the public. (Yes, I`m one of them!)
Have you decided what industry you are going to target? Have you prepared at least a dozen sample newsletters to show to prospective clients? Do you have a program for sustainability and originality?
From an ethical viewpoint, you need to have a product that stands up to the revelation that it is marketed through different outlets, i.e. it must clearly be a syndicated newsletter, not purporting to be the original work of any of your clients.
One thing you will need, though you probably think you don`t: a good editor. There is an old saying in the business: "Every writer, no matter how talented, needs an editor." There are too many writers who believed they could go it on their own ending up failing in business.
If you can`t find one, let me know.
Write With God