Are all professional Battletech novels also part of the official Battletech canon? The two works of whose canon status I'm not certain are "Far Country" and "No Limits", since they ignore fundamental premises of the Battletech universe. Additionally, I'm not sure, if novels which were first published by non-English publishers are considered canon.
Whatever we establish for research material for the authors is canon. Currently, that list includes:
All sourcebooks and novels produced for BattleTech by FASA and Roc in the United States
All sourcebooks and novels produced for Classic BattleTech by FanPro and Roc in the United States
All sourcebooks and novels (including electronic publications, such as BattleCorps) produced by InMediaRes (and its subsidiaries, BattleCorps and Catalyst Game Labs) in the United States
All material produced by WizKids for the MechWarrior: Dark Age/MechWarrior: Age of Destruction game lines
GENERAL INCLUSIVE NOTE: There are a few select instances where a story or article appearing even in these sources may be considered non-canon, but generally this is because the material was in error [...], or it was specifically published as a gag [...].