You have a speech check of 35 and another one of 50 that will help you convince Benny that you will no longer pursue him or interfere with his plans, that way he will not send his assassins to kill you. Once you're inside, Benny will tell you over the intercom next to the exit that he has no intention of coming up to the suite. Fallout: New Vegas Walkthrough - Fallout New-Vegas 39 He will give you the key to the Tops presidential suite and tell you to meet him there.
Talk to Benny who's inside the Tops Casino.
Fallout: New Vegas Walkthrough - Fallout New-Vegas 38 Once you've entered The Strip, head to the Tops Casino. Fallout: New Vegas Walkthrough - Fallout New-Vegas 37 You will have to pay 2,000 caps to enter The Strip.
Fallout: New Vegas Walkthrough - Fallout New-Vegas 36 Once you've reached the Strip's North Gate, you will have to go and talk the Securitron in front of the gate. Ring-a-Ding-Ding! Fallout: New Vegas Walkthrough - Fallout New-Vegas 35 You can jump to nearby pages of the game using the links above.