How you describe everything is all very confusing so I guess none of us really understand what you are trying to ask. As the executor you should be very clear on the terminology and the status of the assets of the estate, and it seems your solicitor is trying his best but …..
4 beneficiaries were left 14 parcels of land/property.
Residue of estate was left to you.
There was debts of nursing home loan.
Probate granted June 2023.
Nursing home loan was due to be paid Nov 2023 - the estate paid some interest due but not all the loan.
You personally borrowed money to pay CAT which you paid (but you did not own the assets as the estate had not been distributed)
3 of the 4 beneficiaries instructed that their potential legacies be sold by the estate and they would take their portion as cash. (this includes you). The 4th beneficiary is keeping the land/property.
The executor (you) instructed each of the 3 beneficiaries selling to arrange and conduct the sale themselves (this is very odd, usually the executor would do all of this)..
The proceeds of the sales will be gathered by the solicitor assisting you.
As soon as there is sufficient funds the nursing home loan will be paid (this is prudent as interest accrues quickly), and you even paid for a barristers opinion on it!
Once all the cash assets are gathered the other debts are paid, and the cash distributed to the 3 beneficiaries (sale money-fees & charges- some complex calculation of how much each paid of the nursing home loan).
Then you get your money and you can repay your loan that you took to pay the CAT. It is only at this stage that you know what your CAT liability actually is as up to now you had received no money or assets from the estate.
Given how hard it was to understand what you are describing (and I am sure I got somethings wrong) I would think the solicitor will strongly suggest that no monies be paid out until all the assets are gathered. Your understanding of whether you and/or the other beneficiaries owned the assets or were acting as executor of the estate seems very woolly. I really think you should just follow the solicitors advice step by step until he gives you a final cheque and can close the file, and not muddy the whole thing by looking for partial payment of your inheritance early.
Best of luck, it would have been a very hard task getting to probate with all the different assets and beneficiaries desperate for cash but you are close to the end now.