How to find a mature marketing/bizdev parter to join and expand my existing software services company?

My software services company has been profitable and stable since 2001. I sold off part of the business to my original partner a few years ago, and now I am looking for a new partner who wants to handle business development, marketing, and the formulation of new products/services with me. A real partner, not just a salesperson. Places like founder2be, etc. aren't turning out to be a good match because I'm not really going for a growth + exit model. I'm focused on solid, steady, generous income instead of a massive exit. I'm looking for a partner who wants to profit share in a small, lucrative company and take advantage of a flexible schedule, work at home, and the ability to make a nice income while [truly] keeping a great work-life balance. Where would I find such a person?