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

OP, from your later post, I don't think you got your story straight or that you are thinking straight, probably both.

Exactly this. You hint that a) you don't believe your relations are for long; b) you don't trust him to behave nicely when you split.

So why do you move in together? ...Well, apart from the obvious fact that he is well off.
Your only right behaviour, if you want this relation to go on, is to show how much you are excited about the move and how much you are grateful for him for the opportunity. Without any 'but's and 'what ifs'.

Yes but as long as she’s earning and has a decent credit rating, there’s no reason why he can’t put the deposit down and they both pay the mortgage. Their borrowing power will be higher with both of them on the mortgage and probably free up some cash to do the place up? Just a thought.

I'd marry with a binding prenup to protect his wealth if that's what he wants. I know you say you don't want to marry but would a break up be less devastating if unmarried?

He'd be paying for housing so presumably you'll have more money, save it in a fuck-off fund for if you ever need to move out in a hurry.

It's wise to think these things through, but what you want for the next two years might be different to what you want in the next two decades and beyond.

I wouldnt bother. Just find somebody with less baggage.

I’d assume the fact she’s skint is the issue.

What? Why can’t you save that money and pay for yourself??

Why can’t you buy the house jointly as tenants in common with deposits protected?

I think you absolutely should talk about what happens if you split. Relationships are about wanting the best for each other and that includes a mature, amicable breakup.
I would go for the cash/rent payment option instead of being able to live in the house for six months. No matter who breaks up with who it would be really miserable and you’d probably want to leave sooner if you could

That’s what I thought. She’s going to be so much better off, no bills, no mortgage,living rent free, getting the rent from her place, all she need to do is pay for herself and her kid, and she’s now wanting her to give cash or pay for her after.

id run if I was him, I get being skint can make you a bit grabby when you see the opportunity to make money but I’m not sure this is ok.

Do not give up your job and work for him. It can be awful for. A relationship if he's your boss but also a real controlling mechanism. SO hard to leave if your job is under threat and you've no income.

How much are you contributing when you move in together?
is he expecting you to cover all costs because he's covering mortgage or has paid for the house if there's no mortgage?

This sounds like a much better idea

He is giving you and your kids a roof over your heads and paying all bills. This means you can save a lot of your rental money and use this in the event this goes pear shaped. I think 3 months is therefore a maximum. Do not sell your house, getting off the property ladder is a huge mistake ... i was going to do it then got cold feet, had I sold the same property would have risen by about a third and I'd have lost my footing.

You said "we" put in an offer on a house. Is the intention that you are both on the deeds as that changes everything.

So you both put an offer on a house today? You are not moving in his house then but buying together? I am confused. Will you get an interest in the house? If not, why do you say "We put in a offer on a house today ..."

He is relocating as well? So he is taking a risk too. Having you and dc in his house is also a risk for him.

You are getting the benefit of a better location, better opportunities for you and dc and a bigger nicer place to stay all for free. Despite all this, you seem to imply you are the one making the sacrifices and need security/to be paid off if the relationship breaks down just by moving.

Yeah, I mean life has risks but I would not be impressed if I were him. He might be too nice to say it.

Eh? Why would he do this? The op has her own house, will have rental income from that so can rent her own property should they split.
OP, I think you're being very grabby here!

Also, have you planned what would happen if he died suddenly?

Could you remain in the house, access money to pay bills etc etc

Ps. Don't marry him!!!

Also op yoire going to be living rent free, he’s even paying all the bills and you have your rental income. Getting your hand out if you split is all kinds of wrong. Just save six months youtself.

Where would one find a millionaire? Asking for a friend lol!

I’d really get the ick if someone asked me if they could have ten grand or rental costs if we split. Like properly. You will have the rent on your place. Save six months costs.

You need your own solicitor to look out for your interests, not just the one drawing up the contract.

While not binding, the current law is that they will usually be followed on divorce.

In any event, the OP put ‘prenup’ in quotes because they aren’t getting married and cohabitation agreements generally are binding.

If he is going to be paying the mortgage on the shared house, and you’re renting out your own house, can’t you save a certain amount each month as you will no longer be paying a mortgage? Therefore wouldn’t need anything financially from partner?

You should have the same rights as your tenants in your house - can you draw up some kind of tenancy agreement that is on a rolling basis and a peppercorn tent but sets out how long you have to leave