Note: Here are the three options I made from observing your recommendations. I also made it so it match the plot that I've set up.
Option A has won by a landslide.
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Option A
House Name: Neméos
House Words: Great Labor, Greater Deeds
House Sigil: The Nemean Lion
House Land: Castamere
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Option B
House name: Braveheart
House Words: Our Spirits Never Waver
House Sigil: Wolverine
House Land: Close to Lannisport and Crakehall
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Option C
House Name: Darkclaw
House Words: We Deal In Absolutes
House Sigil: Claws
House lands: Close to Casterly Rock And Kayce