Tanya is right, the state plays a role. Also, what form of structure you plan on using, like Inc, or C-corp or LLC, etc.
If you do a corporation you might want to consider Delaware and then you can ask your "representing agent" what CPA they suggest. Legally Delaware is best for Inc. but if you don't live in the state you need a representing agent.
If you plan to do any form of LLC or trust or a combination, I suggest Nevada, as its the legally best for that.
The two organizations I have used for Nevada are "Your Entity Solution" or YES, if you just need the company setup.
If you need more, which I believe is the case for you, I suggest you work with Nevada Headquarters Corporation (NCH). I can make an introduction so that you have easier access. They also have a CPA link available
Feel free to contacts me directly if you like my help