Due to the multipul directions of the Tv transmitters it will only be possible to receive all the Tv stations with one antenna and a rotor. For one Tv thats Ok but for more then one Tv , conflict can happen over what direction the the antenna is pointed. Most of the Tv transmitters can be received with one antenna and No rotor, but not all. I suggest Winegard MS 2000 with no rotor mounted on the roof. The MS 2000 is a omnidirectional antenna , but even so it will likley not receive all the Tv stations. Here is a eave roof mount that might work with your situation , Is there a peak of the roof where this eave mount can be put at the back of the house??
http://www.ronard.com/34424560.html . If you or you and a helper are going to be doing this then youall will need to come up to speed very fast. Being helpless every step of the way will not cut it. If you will like to have some one that installs antennas do it then I suggest one of these ,
http://forum.tvfool.com/showthread.php?t=1327