I'm seeing basically nothing about free agency interest in Byron Maxwell, except possibly from the Seahawks. He's 30 years old and was cut by the Eagles and Dolphins. For the Seahawks, it's good that interest in Maxwell appears to be low because that means they should be able to re-sign him for a bargain contract. He has shown to be more valuable to the Seahawks than to other teams in the league.
Even when you include his play with the Dolphins last year (39.2 grade in two games), Maxwell was one of the Seahawks highest graded defenders last year (and our highest graded CB by PFF).
Byron Maxwell - 84.0
Richard Sherman - 82.7
Justin Coleman - 81.8
Shaquill Griffin - 77.2
Neiko Thorpe - 70.7
Aside from one bad game against the Jaguars, Maxwell had an impressive season. Then factor in that he had to re-learn and adjust to a new scheme, mid-season. His play only improved as time went on and he became more comfortable.