[1171]

of course you have a choice; they need your signature on the settlement.
beneficiary wording should be part of the terms of the settlement; don't assume it or leave it to interpretation.
generally fees are determined by what benefits were negotiated not what is necessarily by what is paid or received.
atty fees are up to the rules of your state's comp court. I don't know your state.

options for what?
you can change attys at any time. some attys are more willing to listen to their clients then others; depends on how it'll affect their workload and fee.
options also depend on what your state's comp laws are.
every state is different; without knowing yours no one can tell what options you have.

you can find out more about MSAs from the CMS reference guide:
https://www.cms.gov/Medicare/Coordinatio...rview.html