If you team up with other genealogists who have expertise in an area you don’t, it may benefit you and the client. You never know who might refer you to other clients with your expertise. You can think of it as a strategic alliance. This adds continued value to the shared audience, and strategic alliances could produce potential referral business.
This teaming up has so much potential for clients that wish to have DNA analysis done or interpreted. I would rather help a client to meet their objective then to inform them, “no I don’t do that.” Find ways to help the client by looking for those strategic alliances. I recently have had a formal alliance with another sole proprietor genealogist (like myself) who is helping with a current client.
“Building Relationships” is key to fulfilling clients requests, when you know someone with a different skill can help.