DW and I are around 60 and although we are British we haven't lived in the UK since 1980, so we have no idea how "adulting" works there. DD (28) is living in the UK with her boyfriend (29), and they are currently renting.
We have some money in the bank of Mum and Dad and would like to help DD to buy a property. Where they are, the kind of property they would want is around £350K, and we can chip in around £150K.
DD makes twice the salary of BF and this is likely to continue, even if grandkids come along. BF is great and they have been together for 5 years, but they aren't married and if push came to shove we would want our assets protected. So we are probably looking for some kind of joint ownership, so that our money is clearly separate from DD&BF's, whatever their relationship formalities.
In some European countries there is the concept of a "one-asset company", where you create a partnership whose only asset is the house and then assign shares in that. For example we might have 35% of the property, DD would have 50.001%, and if BF wanted to chip in for 15% he would be welcome. Then if they moved or the relationship went south, he could be bought out.
Does anything like this exist in the UK? What other possibilities are there?