I’m looking for a local (Chicago area) provider who is interested in a long term arrangement. She should be very open minded, fit, and attractive. I prefer under 30

Might be tough to find. In fact impossible to find. You might have to compromise on some of those qualifications.

I'm pretty sure most providers would be open to such but they likely wouldn't agree to one with someone they haven't seen a few times. My suggestion is to bring up an arrangement with someone you enjoy spending time with. Be prepared for it to be more structured and costly that a regular sugar arrangement. A lot of ladies mention arrangements on their sites (myself included but I am not sure I'm your type), if they don't there's no harm in asking.

I took what he said with a grain of salt. Not true, but do believe it will be a little difficult to find what I'm looking for.  

I understand and not worried about the financial aspect