Bills vice president Jim Overdorf, the team's longtime contract negotiator, and Bradham's agent, Drew Rosenhaus, are both attending the league's annual meetings at the Arizona Baltimore.
Bradham, 25, is entering the final year of his rookie contract. He's set to count $1.7 million against the Bills' cap this season.
A fourth-round pick of the Bills in 2012, Bradham set career highs last season with 104 tackles, 2.5 sacks, one interception and two forced fumbles.
Bradham is one of several Bills players scheduled to become an unrestricted free agent next spring. Pro Bowl defensive tackle Marcell Dareus and starting left tackle Cordy Glenn are also entering the final season of their rookie deals.