OH wants to kick DD out

[KeenViper]

OH keeps saying he’s going to change the locks when DD turns 18. We own the house jointly, what can I do to definitely prevent him doing that?

Does he have a reason for doing it? If he's just being a dick then no, but if she's selling your stuff for drugs then it's justified (IMO).

More context would be helpful!

Leave him?
Seek legal advice as well/instead

Leave the bastard. This is an extremely clear cut case.

Why does he want her out? I assume not her dad?

Simple. You split up. Buy a place with your half.

I would leave him as soon as I could.

Sorry.
he is her father.
she is well behaved, works hard.
she stands up to him.
i was hoping i could block him from doing anything, get that settled, before any larger change.

You need to look at him being out of the house. Not her.

She 'stands up to him'? Sorry OP, but bluntly she shouldn't have had to stand up to him. You should have protected her by leaving long ago.

Leave him sell the house , set up another home for you and DD

Kick him out.

What's the backstory?

Is he serious? If you think there is a chance he may be genuine he is awful and splitting should be your top priority.

Sell the house and take your half. I wouldn't accept anyone l throwing my children out of their home

He can change the locks but you’d have to be able to access the house as joint owner and could give dd a key.

But that’s not the issue here

You should be asking yourself why you haven't already left him. I'm betting he has form for being an arsehole.

But that’s not the issue here
No, definitely not the issue.
When you say ‘stands up to him’ OP, what do you mean? Is he abusive, bullying?

Are you in a abusive relationship? You need to find a way to leave with your dd. Get some legal advice and if money is an issue go to womens aid.

Yes you are all correct. I’ve contacted a solicitor just now. He is awful and getting worse.

I’m really pleased to hear that @KeenViper

Excellent. Please don't back down and change your mind. Your daughter needs you to have her back and protect her from him.

Glad you have contacted a solicitor OP stick to your guns and support your DD.

@KeenViper let him change the locks and give her a key!! you own half the house so you also have a say! If he isnt happy, sell the house and give him half!

She should not have to stand up to him and neither should you - get proper advice and leave, nothing about your post is ok! I am almost certain he is a complete twat to you and your DD most of the time, please do something positive and proactive now - you will both feel so much better for getting rid of this idiot! xx

I wouldn't call any man my Other Half, especially a man that's been a complete bastard.

My ex husband said the same. We were both out within 3 months followed by the house being sold and getting a divorce. He thought I was bluffing when I said that if she goes, so do I

He's abusive to you, OP, isn't he, as well as to your daughter? Please talk to your local Refuge service. If he gives you any reason to call the police, please do do. You need an occupation order. I'm sure what you've said here is just the tip of the iceberg.