Eva
Shouldn't be necessary if the executor is an attorney. If the executor is one of the beneficiaries however, someone else should probably review the settlement before the funds are disbursed. All of the beneficiaries are entitled to see an accounting of the settlement.
WRG
Yes
Tavy
Yes in the UK. Should be the same in any Country.
Katherine W
Sure, it shouldn't be a problem. You're just getting a second opinion.
babyboomer1001
Generally, no, if he is competent.