We had problems when buying our small farm, all the solicitors used were useless and I would spend a bit more money and go for a proper agricultural solicitor even if they are not local.
Our land had not been registered properly with the Land Registry and was still owed in law by the previous owner although some of it had been sold to someone else, two solicitors not doing their job, so it all had to be done together again. So check the entry on the Land Registry and the plan. Make sure the solicitor registers the transfer.
Land Drainage Rates, never mentioned.
SFP, never mentioned, the previous owner claimed it and it was not sold with the land.
Our neighbour gets his water from next door, all in the deeds, the supplier of the water has just cut it off and decided she doesn't want the electricity board to supply him so will not let them on her land. So try and find out where you services come from and go, if it goes over someone else's land is it in the deeds and have there been any problems.
Septic tank , water treatment, is it registered, never mentioned by solicitor.
You may think some of these do not apply but its best to try and find out everything before you want to sell and it holds up a sale.