OK, for now I have only read the OP. We were in this same position and you need to protect yourself.
I have quite a bit of insight into the situation as well because I did a law degree and a lot was focused around property rights and wills etc.
So, day to day finances - we each pay an amount into a joint account for sums we are both responsible for. This includes groceries and dp pays £100 more than me to cover dss portion. We also include some for 'long term savings' [I am a save-a-holic, dp just spends everything] which will end when it gets to £10k, and short term which is for holidays and stuff we want to do on the house.
We then each keep whatever is left of our own monthly income. We review this annually.
Dp gets a quarterly bonus from work and he puts 60% of this into the joint account and keeps [spends!] 40%.
Our circs were a bit different - dp pays child maints (even though dss now lives with us - go figure!) and he had zero assets from the divorce. He had a redundancy settlement worth a few x£10k.
So, when we bought the house my half was paid for by me. His half was part paid for and part mortgaged.
The mortgage, which is pretty low, is in both our names - it has to be because the house is. So, we faced the situation that should he die intestate his 'half' would go to his son, I would be responsible for the mortgage and so essentially his son would get some of MY money.
We are tenants in common with 50% shares - this means each of us can do as we wish with our half, importantly leave it to whoever we wish in our wills. If you are joint tenants the portion is always 50% and goes to the other joint tenant on death - which avoids paperwork but may not be what you want.
We solved this with the following:
- a will - dp decided that actually the house would go to me, it's my home so that was what he wanted (I reciprocate in my will) - of course he can change this without me even knowing
- insurance - dp took out life insurance to cover the cost of the mortgage AND any remaining maints for dss (who is now 15, obviously the remaining reduces over time)
- he made ME, not the exw, the trustee for any money going to dss - he knows I am a) good with money, b) sensible, c) always fair and would have the best interests of dss at heart (exw cannot have the same said of her - she has already stolen £7k from dss bank account as well as having spent all of her settlement and is now asking for more so she can move house - she has no legal right to this but dp doesn't want any drama so is considering what he might do)
- we have a deed of trust that says what will happen if we split up and sell the house - i.e. the mortgage gets paid first, THEN me, then dp repaid his deposit, then equity split 50/50. If this wasn't in writing it could be very tricky.
It is really important to me to protect myself. And I have no intention of marrying as we will not have children and I have way more assets (as well as half this house I have savings and decent pension pots). dp knows I would always look after dss, and I would, no matter what happens.
In terms of other assets - dp has named me and dss to have half each of any death in service he gets through work - can never rely on this as he obviously might change jobs. Your dp needs to have life insurance as he is self-employed.
dp has stated that dss gets the first £20k of any money (with me as trustee) and then we get 50/50 of the remainder - this is optimistic, dp doesn't have £20k! :)
I get everything in the joint accounts - this happens by law anyway, as joint bank accounts are assets like houses and you own them as joint tenants, so by law the money is mine when he dies anyway (and this is also why the long term savings will stop when it gets to £10k, I'm not trying to grab money from dp - but he is so bad at saving that it's just as well if I plan something. I'd probably end up giving it to dss anyway).
We also set aside £100pm from our joint money for dss into a JISA, which he cannot access until he is 18.
My will is fairly similar except my assets other than the house are split between dp and my niece and nephew, and there are bequests for my godson and a charity. If we both die dss gets the house as we have both left it to each other and to issue if the other is dead, dp to dss if I am dead. Seems fair enough to me. Neither want the other to have to move out if they die.
The key to all of this was to take good advice from a property solicitor and a lawyer who deals in wills.
The only thing we haven't got tied up is power of attorney which I want to do at least for myself so dp can make decisions (I am nc with most of my family).