Two Richmond law firms are expanding their reach through a merger.

LeClairRyan and Wright Robinson Osthimer & Tatum are planning to merge March 31 in a deal that will broaden their national scope and add to their capacity to handle large, complex cases, partners with the firms said yesterday.

The combined firm will use the LeClairRyan name, and no job cuts are expected.

LeClairRyan said the merger would expand its litigation practice in product liability, construction, employment and the aviation industry, and provide its clients more representation on the East and West coasts.

"It gives us a greater depth and breadth of services," said Gary D. LeClair, the firm's chairman and chief executive officer.

Founded in 1988, the firm has 220 lawyers and about 225 other staff members at several offices in Virginia and in Boston; Philadelphia; Newark, N.J.; Washington; New York; and Rochester, N.Y.

Wright Robinson Osthimer & Tatum has 50 lawyers and 50 other staff members, as well as about 120 contract lawyers in the Richmond area. The firm, founded in 1986, has offices in Detroit, San Francisco, Los Angeles and Washington.

It also has built a practice in "discovery solutions," which involve litigation that includes millions of pages of documents or large amounts of data that require technological solutions to organize.

"We were one of the first firms in the country to really have a standardized practice group to do this," said Mark Yacano, a principal at Wright Robinson. "One of the driving reasons for this merger was the fact that LeClairRyan wanted to partner with us to continue to grow it."

The discovery solutions practice is at the firm's office on East Franklin Street in Richmond. It will stay there, while some Wright Robinson Osthimer & Tatum lawyers will move to LeClairRyan's offices in Riverfront Plaza.