Answer:
If I knew that, myself and 3 team members would each be 250k richer!
#2 The Continental Club in Austin, Texas
#3 (I think) Triple 17 - Double 20 and Triple 19 - Double 17
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1. True
2. THE Continental CLUB (spelled as on sign)
3. T17+D20 and T19+D17
4. California (Not THE Grand Canyon, the Grand Canyon on the Tuolumne River in California) The clue never said "The" grand Canyon.
5. Omaha and Council Bluffs. I just don't know if they want the state listed in the name as well for a correct answer.