.
Its not that I don't want to pay but I need this to come to an end somehowas its again starting to destroy my life.
Well you must not let it affect you so badly. But you must deal with the letters you do receive. This is really important. By not dealing with them instead of the problem going away, it esculates to a level where you may not be able to deal with it properly.
As Time said, don't worry about the sheriff, he can do nothing and will do nothing to you, that's just a pointless paper exercise. Can you tell us what exactly the judgements and/or letters are telling you to do now, or what are they informing you.
(My comment re contract and freemen is based on other people who came on here with valid debts, that had been sold on, and they were now claiming that there was no 'contract' between them and the company suing them and the believed that this meant they didn't have to repay the debt).
What is it that you find odd about the solicitors for IJ?