Convenient Wills, 16 Thomas Avenue, Newcastle-
Solicitors and will writers will often suggest/recommend that you appoint them as your executors; this way the solicitor or will writer can undertake obtaining Probate for you which, for them, is a very profitable line of business. The fees, of course, are paid out of the beneficiaries inheritance.
There are occasions when a solicitor should be appointed as the executor. But if the estate distribution is simple, does not include complex trusts, and the family are unlikely to challenge the will in any way then usually a family member (who is prepared to devote time to the exercise, and work logically) can undertake the task without any difficulty.
There is help on the Internet, and the Probate offices can provide additional help.