Bill fires Liam when the Forresters decide to sue him and comes across a picture that Liam had left in his office.
Bill is shocked to see that the picture is that of his old college girlfriend, Kelly Hopkins.
With encouragement from Katie and Hope, Bill and Liam do get past the resentment each had for the other and form a father-son bond.
Hope turns to Liam for support when she decides to end her relationship with Oliver.
However, while on vacation on Cabo San Lucas, Mexico, Liam finds out that Hope is with Steffy's brother, Thomas Forrester, and staying at the same resort as him and Steffy.
Despite Amber making advances towards him, Liam remains loyal to Hope.
The Amber saga ends on June 20, 2011 when DNA tests reveal that Marcus Forrester, not Liam or Oliver, is the father of Amber's baby daughter.
Liam and Throne bond while they wait for the DNA test results to come in.
However, the tests showed that Bill is Liam's father, not Thorne.