Texas Firms to Merge

Null-Lairson PC announced that it will acquire Texas City, Texas-based Griffin, Iles & Duvall LLP.   Financial terms of the deal were not disclosed.   Griffin, formed in 1985, employs 14 full-time employees (including a trio of partners) and a season audit staff of seven, according to its Web site. The firm offers a range of tax and audit services for businesses and individuals, specializing in the Internet environment and e-commerce.   Founded in 1975, the Texas City location will be the fourth office in the state for Null-Lairson, which already has outposts in Galveston and Sugar Land, as well as a recently renovated headquarters in Houston. Null-Lairson has 60 employees -- including five shareholders and three principals.   Null-Lairson employs professionals in its technology department, as well as certified valuation analysts, certified financial planners and specialists in the areas of health care, estate planning and retirement planning.