To ask millionaire partner to agree to this term in ‘prenup’

No no no OP you need you own solicitor. His solicitor works for him, you need your own who will be working for you and will be looking out for your best interests.

also hope you know prenups in the UK are not legally binding. If in instances it went to court the judge would take it into account but the terms could be set aside.

Good point!

It will definitely be counted towards college costs, although colleges don’t offer a lot of help apart from bus tickets and FSM which OP will be able to afford now.

It will also count towards uni costs and that might be where it hits DD the hardest as OP will need to fund it for her.

Very good point!

Also as @Lavenderflower said, could you hold on to your property for another 6 months or so.

Relationships tend to all be great, until you move in together and that’s when you find out that it sometimes doesn’t actually work.

Living with someone, especially when there is a child involved, is a lot different than being in a relationship and living separately.

TBH I'm not sure that having the word 'millionaire' in the heading does you any favours here. (Green eyed vipers around!)

It's not clear if this figure is the value of his business or hard cash in the bank.

But it isn't really relevant.

The same situation would apply if he had only £250K and you had £30K in assets.

It's the unequal finances that are the point.
How does it matter if it's a million or just simply more than you have?

You're going to be in the same situation as anyone who moves in with a partner who's wealthier than them, either with a home as their asset or money (or both.)

I know someone else mentioned this but longer term you both need a serious discussion over who inherits what.
Has he children?
When he dies - which statistically is before you- what happens then?
Would you be homeless in your old age?
He'd also potentially lose a lot of his wealth through IHT if it's not passed onto a spouse.

Have you talked this over?

I think there a more than a few envious people on here OP.

I think you and your partner should visit a solicitor together to see what your options are as there may be reasons on here why various suggestions just aren't workable.

I think you sound sensible, not grabby. Yes you'll still have your own property but you're moving to a new area so won't be able to relocate at the drop of a hat.

I'd be looking to make sure you can stay in tye area you're moving to, if it goes tits up at any point.

Glad you've met someone lovely after such a shit divorce and time (I'm still in the thick of this)

Good luck!

Totally disagree: I think people should be more cautious and consider what it would be like to split from someone before they move in together or get married.

Any arrangement you make may not be enforceable legally but an informal agreement might set your mind at rest, if your partner seems like a basically honest person. But if he doesn't mind you not contributing to expenses for a year or two, you might save up enough to move out independently if necessary, then you needn't worry about it. Hopefully this won't be necessary and you'll have many happy years together.

Will his income be counted toward your Dd's college costs. I thought it was household income so she can get finance and maintenance loans

Completely understand OP thinking about all scenarios and this is another to seriously think about OP, if you haven’t already.

I understand your sensible approach @junohername . You have been given a hard time on here uneccesarily ( by some). There is no need, given your request for advice, for posters to be questioning you or your partners decisions and morals.

I'm in a similar position but the other way on. My DP moved into my house. It is mortgage free.
I don't want to remarry having been through an awful divorce.
Having come home at the end of a working day, to find a ‘for sale board’ at the end of the lane where I lived with my husband and children….to wonder who was moving? ….to find it was me, is very sobering.
I never want to be in a position where decisions are taken away from me, taking away mine and my children’s home.
Planning ahead, thinking through the risks, as you are, minimises them.
It isn't calculating, it is good sense.

In addition to the good advice offered around buying the house proportionately together, I would also suggest you both add to pension pots for the long term and also seek legal advice regarding wills.

My DP and I have just written our wills with the advice of a solicitor, making sure that my children don't lose out on their inheritance ( my house) if I die first, but also making sure that my DP can stay in our home ( my house) for life, before my DC’s inherit. The solicitor was excellent in writing this legally and including advice around what would happen if my DP couldn't maintain a large house, could he sell and reinvest and also considering whether my children would be liable for my DP’s nursing care from the house. ( he is very solvent too, so no playing the system). We also agreed appropriate division of cash assets between all of our children.

I hope this helps you in your exciting next steps.

Don't sell your house. If he's a millionaire, you don't need to. Rent it out if needs be but do not sell your house

Its very clearly not a marital asset if you've owned it beforehand so keep hold of it. It's your security blanket.

so many red flags

is he really a millionaire? Why do you even know this? Why is he getting a mortgage to buy a place? I get that millionaires are not mega rich these days but even so.

why do you have to get a new job?
why are you both putting an offer in for the new place?
in terms of renting out your house, I’d be very careful and get yourself updated with Labour’s plans to shaft homeowners and (decent) landlords, you may not want this option after doing some research.

it all seems one sided and people can be subtly manipulative to get what they want. Don’t rush into anything.

This. Pre-nups aren't legally binding (but can be used as a guide when sorting finances upon divorce) but as you're not marrying this doesn't actually matter.

I don't think there's such a thing as a pre-cohabitation agreement that could be enforced in any way, by either party.

You're effectively moving into his property and will have zero legal claim to it - therefore financial claim, or rights of occupancy.

If you want legal protection you should consider marriage as that is the only way to protect your home (otherwise you're out on your ear immediately should things go south).

Otherwise you walk away with what you brought - with no notice.

You could state instead that he has to pay for your living accommodation for a few months if it goes sour instead. This way you aren’t stuck living together and aren’t homeless.

It’s essential you work out all the details now. Don’t assume it will work out and don’t assume he’d be decent if you separate.

Who is getting legal advice here? Him? You? It should be both of you

"in case the relationship should break down I want written into an agreement that I have 6 months to relocate ... He thinks this is too long and wants me to revise the terms"

I just would not be moving in with him.

This would make more sense and put you in a better light. It is in keeping with your wanting to continue to have a stake in the relationship, rather than focusing on things going wrong.

Much easier to sell this to your partner (and I think better financial outcome for you and your dcs) than to ask him how you can protect yourself if the relationship or living together breaks down.

Of course the relationship could still break down and you would still want to move out but he could not kick you out at a moment's notice as you are also on the deeds. So your objective is achieved. You will sell the joint property and you will get a share (which is equivalent to the sales proceeds of your previous property with hopefully an uplift from the market).

Legally although you are both on the title deeds (make sure you are on the title deeds), you would hold as tenants in common with a separate deed setting out your respective shares.

Do you need to rent out house immediately? Can you see how it goes before making any long term commitments? Have you rented out your house before? It can take a long time to get tenants out - I don't think if I want to risk this if I had dependents. Where would you go if things went pear shaped? It may not be that quick to find another accommodation whilst waiting for tenants to move out your property.

This may sound odd to you but if this relationship broke down the extent he was 'kicking you out' , you'd want to leave asap.

Kicking you out would mean legal enforcement .

If he was that nasty, you'd leave and go to a Premier Inn or rent an Airbnb until you could find a rental of your own then sell your own home.

It isn’t enforceable but many posters seem to misinterpret that OP wants to stay there for 6 months - of course she doesn’t. She wants time to be able to find alt accommodation and ensure she can’t be thrown out on the street at a moment’s notice.

@junohername Hope everything works out
And haven’t come across as grabby.Think it’s important to always consider the practicalities, when you take the next step, in a relationship.

Do you have a financial advisor? You should try to find one.

The rental market is going through massive changes.

If your P is a property developer he should be well-placed to know the state of the market and values.

I think you need to think hard about the rental. It may be a great idea. It may not. You will need to pay for someone to manage it as you're moving away - that will eat into your income.

I do have a friend whose relationship ended in her mid 60s when she moved back to the home she owned and had rented out. It worked out fine for her. But that was over 10 years ago!
But just be aware of the downsides.

What a broke person is considered in the UK? Someone who has 0 savings, 0 income, 0 what? the lady has got a house on her name and some salary ?