I was recently interviewed by Fiona Collie for an article she wrote titled "Five Questions to Ask Before You Buy" for Investment Executive website. The article discussed several important questions to ask first.
One of the biggest hinderances to successful purchases is the incompatibilty of the new advisor with the new clients, because of the personality differences between the two advisors. I encourage my clients to always have the other advisor do a DISC analysis to confirm compatible personalities. Otherwise, the buyer may discover months later that the assets they thought they were purchasing have disappeared. For more information on the DISC analysis see the link here.