Just to clarify for those looking to book hotels with perks, those are not Good Neighbor hotels. Good Neighbor hotels do not have any benefits or perks.
Per your questions -
This is from the Hilton Signia website, you'll show your Resort ID for the Early Entry.
GUEST BENEFITS
Starting October 1,enjoy 30 minutes early entry to any Theme Park every day! That means you’ll have even more time to experience the dazzling Walt Disney World® 50th Anniversary Celebration.
A Park reservation and valid ticket or pass for the same Park on the same date and valid Resort ID are required.
As far as getting
Individual Lightning Lane purchases, I can't find anything that says those hotel qualify for 7 am. This is from the Disney website.
- Guests of a Disney Resort Hotel and Other Select Hotels: These Guests can make their first purchase starting at 7:00 AM on the day of their visit. Available to Disney Resort hotel Guests and Guests of Walt Disney World Swan and Dolphin Hotels and Shades of Green.
- All Other Guests: These Guests can make their first purchase when the park opens.
Anyone can book
Genie+ Lightning Lane reservations at 7 am no matter where you are staying.