Other than initiating the fires in WTC 7, the damage from the debris from WTC 1 had little effect on
initiating the collapse of WTC 7. The building withstood debris impact damage that resulted in seven
exterior columns being severed and subsequently withstood conventional fires on several floors for
almost seven hours. The debris damaged the spray-applied fire resistive material that was applied to the
steel columns, girders, and beams, only in the vicinity of the structural damage from the collapse of
WTC 1. This was near the west side of the south face of the building and was far removed from the
buckled column that initiated the collapse. Even without the structural damage, WTC 7 would have
collapsed from fires having the same characteristics as those experienced on September 11, 2001. The
transfer elements such as trusses, girders, and cantilever overhangs that were used to support the office
building over the Con Edison substation did not play a significant role in the collapse of WTC 7.

-- NIST NCSTAR 1A, xxxiii

Futhermore, you can cite this 911blogger post: New York Judge Dismisses Claim Negligent Construction Contributed To WTC 7 Collapse if they try to say WTC 7 was a "weak building".

Cheers