Thus, while it is clear that a plaintiff-client must prove negligence (i.e., that the defendant-attorney failed to exercise that degree of care, skill, and diligence commonly possessed and exercised by members of the legal community), some cases hold that the negligence must be "the" proximate cause of damages (Britt v Legal Aid Soc., 95 NY2d 443, 446; see e.g. [read post]