My grandmother signed her house to my mum to avoid inheritance tax. (6 years before she died) Before you do this get the house valued. The house is then capped at that value. After the transfer my Grandmother paid £200 a month into my moms account. Didnt have to be market rent, just some rent. My mum then would use that money to buy my Grandmothers shopping. (Obviously she had no intention of keeping this money for herself)
After my Grandmother died there was absolutely no inheritance tax on the house which was worth £320 000 pounds.(inheritance tax is now £325,000 but was alot less back then)
I must say, it was never checked if there were payments paid to my mum from my Grandmother, but if it had been investigated it would have all been legal.
Hope this makes sense.