It took less than two years for Nelson Brown & Co., formerly Nelson Levine de Luca & Hamilton, to transform from an expanding, profitable insurance boutique to the nearly shuttered business that sources say is winding down.

The Blue Bell-based firm’s last remaining name partner, Michael R. Nelson, left last week. Sutherland Asbill & Brennan announced June 1 that it hired Nelson and four other former Nelson Brown attorneys.