Can a will stipulate the solicitor an executor must use for probate?

If the Solicitor's firm that drafted the will included the provision that their firm be used, that may potentially put them in a conflict of interest scenario.

However, as far as I can see (and I've looked), there does not appear to be any express legal or ethical bar on such a provision being put into a will. The general rule for solicitors is that a solicitor should not draft a will where he is the recipient of a gift or bequest under the will. The ethical guidance states that it is prudent for a solicitor to refuse to accept any benefit under a will he/she is personally drafting. All that said, I would not have included such wording if I was a Solicitor drafting a will which I was ultimately seeking to benefit from.

Nonetheless, whilst the Solicitor who drafted the will from which s/he seeks to benefit may encounter ethical questions (in the event of a complaint to the Regulator) as to why such wording was included, this does not invalidate the will and nor does it remove (in my view) the obligation on the executor to adhere to the will's provisions. We are not even sure here whether the firm who drafted the will is the same firm named in the will. As pointed out earlier, the testator may have had good reason to name the solicitor's firm, as they may be familiar with the unique circumstances surrounding the estate and the individuals involved etc.

@Thirsty asked some valid questions earlier, which I will now address:



In the end, the OP should seek their own advice on the matter, but the easiest thing is to follow the will's directions. Doing otherwise could end up messy.
 
If it were me, I would not hesitate to appoint alternative Solicitors if I was not happy with the nominated ones.

Our family used a particular firm for years, as the senior partners were family members.

Over time, people pass away; employees move on & yet my elderly relatives continue with that firm.

I myself wouldn't instruct them to find a lost cat; and I'd stand down as exec before I employed them in probating a will.

I don't find your arguments compelling.
 
Of course, there's always the option to renounce.

Whether or not you find my arguments compelling is irrelevant and matters not to me. I'm simply putting forth an insight for the benefit of the OP and readers such as yourself. An executor who acts contrary to the terms of a will does so at their peril.

Have a nice evening.