Hedgie58,
I would think 3.1 undergrad cumulative is a bit low for a business PhD. I also think that a master's degree
with a strong GPA would be helpful. For finance PhD, I would say finance/economics/accounting master's
would be relevant.
Again, I want to reiterate that I know little outside my narrow field (accounting).
Perhaps you better post you full profile here (of course you don't need to disclose particulars like
the names of the universities you attended), including your education, work history, age, and
other factors you consider important, so more experienced people can give you a good advice.
Thanks