Allegheny County Bar Association Serves Allegheny County residents through legal information, lawyer referrals, and a listing of services offered free to the public by the Bar Association. Allegheny County, Official Website Links to services and information for county residents. Property assessments, recreation information, links to county services and agencies, forms, court records and more. Internal Revenue Service (IRS) Federal tax information, including instructions, forms, and federal tax filing details. Legal Forms Download and customize official legal forms to suit your needs. Forms include wills, power of attorney, leases, divorce, and more. Library-funded. Pennsylvania, State’s Official Website Pennsylvania residents will find services such as driver’s licensing and vehicle registration, state tax forms and instructions, tourism information and links to state agencies and officials. U.S. Census Bureau Complete census information for the United States. USA.gov The official website of the U.S. federal government.