The Digital broadcast television transmissions are strong at your location. One of these indoor antennas at each Tv will work fine ,
http://forum.tvfool.com/showthread.php?t=233 . Provided that the building is not wrapped with metal siding or a metal roof or poured concrete walls or brick from ground to roof. Here is how to point indoor Tv antennas ,
http://www.kyes.com/antenna/pointing/pointing.html , point the indoor Tv antenna at about 20 degree magnetic compass. . Or a Winegard Hd7694P antenna can be mounted in the attic and pointed at about 20 degree magnetic compass , the HD7694P will supply plenty of signal to 2 Tv's. Provided that the roof or walls are not made of metal. Here are some places to buy Tv antennas and etc.. ,
http://www.solidsignal.com ,
http://3starinc.com ,
http://www.starkelectronic.com ,
http://www.amazon.com