When Lewis Rice made the rare decision to launch a subsidiary law firm last September, it took aim at a statistic that shocked Thomas Erb, the firm’s chairman. Less than half of Americans have a will or trust.

TuckerAllen, a lower-cost subsidiary of St. Louis-based regional firm Lewis Rice, offers free consultations and two all-inclusive estate plan packages: Wills are priced at $550 and trusts cost $950 for individuals. Those price points are hard to achieve within the traditional law firm model.