Eleanorre, I have been out this afternoon and thinking about your plan while I was out. Now I have come back and re read your posts I have come to the conclusion that you do not fully understand how a trust works.
When your house is put in trust, the ownership of the house passes from you to the trust. The fact that you are the trustees does NOT mean that you therfore own the assets of the trust. Property, whether a house or other assets, goes into a trust for the benefit of specific beneficiaries, I would assume your children/grandchildren etc. As trustees you have a legal responsibility to manage these assets, that are no longer yours, for the benefit of the beneficiaries. This means that, if the assets of the trust include a house the house should be properly maintained and managed and unless there was other legally sufficient reason it should be let at a market rent. If you choose to live in it you must pay rent and that rent goes, not to you but to the Trust.
Do not be misled into thinking that just because your solicitors are 'reputable' and your financial advisor likewise that they will not be pulling a fast one on you. Royal Bank of Scotland and Bank of Scotland were considered exceptionally reputable Banks, but they are having to pay billions of £s back to peopel who were missold PPI insurance, endowment policies and all sorts of other schemes that were not what their customers thought they were.
Before tieing your self up in this scheme seek legal advise from another solicitor or speak to your local CAB. If this scheme could put people's assets out of play for any care fees they may need to pay every older house owner in the country would have set one up - but they havent, because they do not work and can be overturned by local authorities, who will usually just refuse to pay care fees rather than go to all the bother of a court case.
The fact that you posted details of this scheme on Gransnet for comment shows that underneath you too are uneasy about it.