You would need to make an application to court under Part 8 of the Civil Procedure rules for an order for sale under the Trust of Land Appointment of Trustees Act.
There is no standard form for this and he would normally complete general purpose form N244 along with a witness statement and submit that to the court with the appropriate fee.
Unless you have experience of drafting such applications, you might want to get a solicitor or barrister to draft the proceedings for you. Solicitors and barristers arguing is what costs money, actually drafting proceedings is only going to cost you a few hundred pounds and would be worth it just to get the wording correct.
You would add those costs onto the court and any other legal costs you would claim along with the court action for the order for sale.
Can I clarify anything for you?
Please don’t forget to rate the service positive.
It’s an important part of the process by which experts get paid.
It doesn’t cost you extra but helps me greatly.
We can still exchange emails with you with.