Baltimore County Property Tax Credit for Historic Rehabilitation
This site answers such questions as what kinds of improvements are eligible for tax credits, what properties are eligible for tax credits, and the procedures for filing for tax credits.

Maryland Historical Trust
The Maryland Historical Trust assists the people of Maryland in identifying, studying, evaluating, preserving, protecting, and interpreting the state's significant historic districts, sites, structures, cultural landscapes, heritage areas, and more. Information on state, local and federal tax credits is found here.

Historic Towson, Inc.
Historic Towson Inc. is a private, non profit organization dedicated to preserving Towson's past. It works with individuals, the business community, neighborhood associations, and government representatives to foster a greater awareness of historic preservation and to seek a variety of solutions for preservation needs. 

Baltimore County Historic Trust
The BCHT is chartered to register historic properties and historically significant architectural landmarks in Baltimore County. Also includes tax credit information and information on its grants program.