Washington, D.C., law firm Hogan & Hartson is negotiating to take at least 40,000 square feet in the planned Legg Mason Tower, a 24-story office building to be constructed on the fringes of the city's business district at the waterfront Harbor East development.

The law firm would be the first tenant to follow Legg Mason to the new office tower, where rents are said to be the highest in the city. Legg is slated to move by summer 2009 from its signature office building at Light and Pratt streets.

Hogan has about 45 local lawyers and about 30,000 square feet at Harborplace Tower, a waterfront office building at Calvert and Pratt streets where its lease is set to expire in October. The building is connected to the Gallery shopping mall.

Birmingham law firm White Arnold & Dowd PC and fellow Birmingham firm Summey & Hennecy have merged.

Partners Sidney C. Summey and Karen M. Hennecy and their staff members recently agreed to join White Arnold & Dowd PC, which brings the firm's total staff to 17.

The move strengthens the firm's growing probate and elder law practice, a news release said.

Summey has more than 30 years of experience practicing in the probate and civil courts in Alabama and will continue his primary practice of wills, trusts and estates, assistance to litigators handling lawsuits for minors and incompetents, special needs trusts and planning, guardianships and conservatorships, elder law and litigation related to probate issues.

Hennecy will concentrate her practice on elder law issues, assisting clients and their families with matters including advance directives, durable powers of attorney, wills, trusts, asset preservation and Medicaid planning and administration of the estates of decedents and protected persons.