How can I find someone to run my business until I can sell it?
Enter the Project Grow Challenge presented by Entrepreneur and Canon USA for a chance to win up to $25,000 in funding for your business. Deadline is Sept. 15 2015. Click here to enter.Not knowing what industry you are in, my general answer would be to go to a competitor and arrange some sort of vendor finance where you could get paid back over the next two to three years.
I hope the experience hasn't soured you or your wife totally on business ownership--as it is still the best way to independent wealth.
Good luck in your efforts and relationship.
All the best.