I would suggest seeing is a professional business appraiser. Have your business appraised so that you will know what fair market value is for sure. Ask your pest control association tto furnish you with the name of the nearest certified business appraiser. Look for ones who not only use standard industry appraising techniques, but their own professional expertise, as well, to help you determine a price. In addition, any certified business appraisers they may recommend, have been tested to insure that the appraiser knows what he or she is doing. To insure superior integrity during an appraisal, recommended appraisers are required to abide by an exact set of guideline rules set forth by IBA.