The wording of what you will and will not do is , clear.
You do not want a antenna/s above the roof.
You will put the antenna in the attic.
Quote , "The attic can hold a larger antenna , and while the antenna will still not be above the trees at least it will be higher then the one in the garage."
I have provided the information for antennas in the attic. You can look up the sizes and decide if the antennas will fit in the attic.
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A distribution amplifier will handle stronger signal input of received Tv transmissions without overloading.
Some , but not all , of the Tv transmissions at your location are very strong.
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VHF channel 10 is a shopping channel. If you do not require the shopping channel , do not install the YA1713.
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Tv antenna rotators Are Not channel surfing friendly , Must wait for the antenna to rotate. And not every one in the house will agree on where the antenna is aimed.
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A second antenna Will Be required for reception of the southward group of Digital Tv stations/channels.
Aim a Winegard HD7697P antenna at about 200 degree magnetic compass direction.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
I do not recommend a amplifier for the southward group of Digital Tv stations/channels.
For 1 Tv connection use No splitter.
For 2 Tv's connected use a common simple 2 way splitter.
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The southward HD7697P antenna and no splitter or 2 way splitter and All of the coaxes that will make up the system is a SEPARATE system and Will Not be connected to the other antenna system.
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At the location of the Tv or Tv's will be a , Remote control A/B antenna switch to change from one antenna system to the other antenna system.
A/B antenna switches Are Channel Surfing Friendly , press the button on the hand held remote control , change antenna systems and keep on channel surfing.
http://www.radioshack.com , # 15-1968 , or ,
http://www.mcmelectronics.com , # 32-4425 .