Hello and welcome. Thank you for profividing an opportunity to assist you.
To begin with, it is important to note that there are certain rules that governs the loaning out of SIPP. Such rules provide that the SIPP loans should be made purely with commercial terms.
Commercial terms means, the loans should be made out very clearly specifying terms such as interest rate, tenure, terms of repayment, etc. All this need to be documented and signed by all parties to it.
This is the most important aspect in your situation. In my opinion, since I cannot do it remotely from here, you need to see / consult a local attorney with ALL of your papers, especially the signed terms and find out what precisely are the terms of repayment. This is where you WILL find clue to your question. Unless very specifically mentioned, I do NOT see any chance of SIPP taking away your home. However, it would be improper for me to guess such an important thing without seeing any of the documents.
I believe it is imperative that you visit a local attorney with ALL of your papers.
I am sure this would help.
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