All-in-one

I would like to ask an advice. Me and my fellow putting together gamedev studio. I live in US he lives in New Zealand. He is coding technology for all our projects (4 small and one big at this moment). I came up with new IP for all of this projects. 3 projects - family oriented games, 1 is for teens and adults and the big project is going to be M rated (hope to cut violence down to T-rated). The issue is that I want to design things and do some art work (some concept, 3d, animation). But at this moment I have to be a manager, PR person, web master, business man, artist, etc. And I can't make things done. Web-site has 1% of content, art work is 1%, business plan 1% here and 2% there, etc. I am full time graphic designer/sign maker in local sign shop and I have no time. Should I concentrate only on finishing des docs for all of those projects, making at least basic concept work done and then try to find help and finish it up. And only after we have everything done (at least one small project) find business manager (college student) who can help me with business plan.?
Or should I find business manager right now, find artists and do all things at once but with team?
I have found person (local CPA) who knows people willing to invest money. He liked the idea and he was going to introduce me to that people. But I don't have business plan. And I dont have even concept to show (which is less interesting for investors). No concept equals no business plan IMHO. So Im stuck. HElp me out please. I know that alot of people think that it's another "scam" project, because they don't see any progress. At the same time I need a team, at least business manager and one artist. What should I do?
Thanks!