Wow! Great responses here and lots of thoughtful advice. In the interest of giving back-- here is what I have discovered so far (since I posted the original question.) I am just going to put in all and every last detail for anyone else who might have similar questions. (And perhaps for anyone to comment on with additional thoughts/info.)
I called a securities Lawyer ($500/hour) who told me that small F+F stuff is governed by State Law, and each State has its own rules. In some states, like the state I am in, there is an exemption if both: (a) all the investors are accredited (which is generally, in most states, 1m net worth, but can vary.) and (b) I have less than "x" investors (some states say 3, some 5, some 8.)
This is all well and good (if you are in an exemption state) but there is the additional hurdle that if your investor is in a different state, you have to satisfy that state's laws. In my case, my main investor is in a state which has no exemption, which means to trade his money I have to have pass either: (a) Series 7 AND "63" (In quotes because I think 63 was it, take it with a grain of salt, having trouble reading my own handwriting from the call!) OR (b) Series 65 which is the Investment Advisor test.
Worse, in the state of one potential F+F client (even if I have the 65) I cannot take a performance fee (ie % of profit) unless the investor puts in 750k. Uggg.
Also: pooling money is something people apparently do (for small F+F trading)- but is not legit. To pool money you have to do a private placement (which is setting up a hedge fund.) So the suggestion in this thread to pool money (without the hedge fund structure, and 40k to 50k in fees to set up) is apparently illegal.
Last: The legal fees for setting everything up as an Investment Advisor (according to the esq. I spoke with-- who I liked a lot and was a straight shooter imho) is about 2k. You need power of attorney over the client accounts and a few other docs.
And last-- as others here have said-- IB is great for this, with great functionality with the software on the trader workstation for allocating to the sub accounts.
Well, damn, I have to go start studying for the Series 65 (which I am going to do, since this is the only way I can get started with OPM) Anyone have any advice for me on that?
Thanks for the input everyone! Good trading all!