Though it seems that you have the right idea, the one thing that worries me is this ...
"I joined this forum yesterday in an effort to find JV partners to help me get going with marketing my businesses."
The quote above ... to me, puts the cart before the horse ... and by more or less announcing your JV offer, already, in this post ... just a day after joining, further solidifies my assumption.
Vanessa ... solid joint ventures start with and continue to be fueled by relationships ... and relationships take time (certainly more than one day).
The higher your level of celebrity ... the less you have to prove yourself ... 'qualify' yourself, and your wares ... that's just the way it is ... you have to start from square one.
We have a JV announcement category where all partners are welcome to post their joint ventures ... the general discussion category is where we get to know each other ... ask questions ... offer advice, etc.
I realize you are asking a question ... but it's a common one that has been answered many times ... search the archives and learn from them, and ... in the meantime, get involved in the community ... and start building those relationships.