[tbw2]

Has it been set as legal or illegal to demand a “don’t sue us” notice for bond?

[Travis McGee]

Clearly illegal. It’s the definition of extortion.

[Cboldt]

http://www.aele.org/law/2008LRMAR/2008-3MLJ101.pdf, on the legality of waiver of right to sue for false imprisonment. Lawyer's answer, "it depends."