Answers
According to Cathy ;)

1. Stacey Baldwin was the original Laura.

2. Gordon Grey, one of Lesley's professors in college

3. Gordon's wife, Florence, was one of Lesley's patients at GH. She had psychological problems due to her husband's infidelity with a student, who was, of course, Lesley.

4. Lesley's dad, Walter bribed nurse Doris Roach to switch Lesley's baby with the dead infant of another family.

5. Barbara and Jason Vining

6. Doris Roach confessed on her death bed.

7. I wasn't counting Jason Vining. Cameron Faulkener was married to Lesley when she first found Laura. He didn't want her and paid another nurse to say that Doris Roach lied about the baby switch. He also paid Barbara Vining to leave the country with Amy and Laura without telling Lesley where they were going. Rick Webbed helped Lesley find Laura and helped Laura to understand that her mother really did love her. He adopted Laura.

8. It took about a year real time, and Lesley located the rebellious teen in a commune in Canada.

9. By blood, she has no living siblings that I know of. Amy is a Vining,and Mikey was a step-brother, I believe.

10. David Hamilton met his end when an enraged Laura shoved him and ran away. He apparently fell and hit his head.


Bonus questions:
A. Barbara Jean Spencer

B. Luke and Stefan