Should I move in with BF in second year of uni?

Have you discussed all the practical arrangements of living together, eg cleaning, laundry, shopping, cooking, how bills will be shared?

Basically I want to live with my boyfriend of two years (we’re both 19 and will be 20 by the time of moving in) for second year of uni. We’re both from London and came to
Southampton to study. I’m a law student and he’s a sports coaching student (I’m at uni of and he’s at Solent if that helps) but we’ve got a great deal on a property that’s convenient for both of us. However, my dad is totally against the idea that we would live together because he’s scared my grades will decline. Tbf I’ve been with my bf for two years and it’s never declined… we literally both went to the same grammar school for sixth form and I’m currently doing law at a Russell group. Anyways, they’re weaponising my grandma who is unwell and saying she’ll be upset about the situation to get to me. Also they won’t sign to be a guarantor for the property for me so I will have to pay for 6 months rent from my savings instead. I think it’s too late to go back on anything since we’ve already paid the holding fee and paying the deposit soon. I’m scared to come back to London for Christmas and I have no idea what to do. I think living with my bf feels completely right for me and the fact we’ve left it til last minute means there’s no back up plan as our friends have already got houses. Also there is no one I know that could sign as a guarantor for me.

Refusing to be your guarantor and using your grandma as a weapon is coercive and manipulative. However, I suspect they will come round, and your grandma will be less upset, once it has happened.

Do u recon I should just go through with it by paying the six months rent instead? I’m literally scared my parents will borderline disown me

How much can your bf come up with?

Understood. I'd have been concerned if you were shouldering the whole burden.
If your parents have access to that account then open up a new account in your sole name and transfer the money there.

They don’t have there name on it anywhere it’s all in my name but you see they’re super manipulative and are the type of people to ask for the log in to see my transactions and then take money out since they ‘saved it up’. Which is true but like why put your kids name on it in the first place if you’re going to take from it…

No, you shouldn't move in with him in the second year.
Live with some of your friends instead.
Aim to do well in your studies and to have a very active social life.
Look to moving your relationship to a non exclusive basis or ending your relationship in the next few months. Followed by you starting a relationship with a new man.

'End your relationship to start a new relationship'; pointless advice. Why would you say that, apart from that's your standard take on things?

samarativona is a first year student at a good university, studying a good degree, assuming she has aspirations to get into a law career.
At this stage of her life, her development is more important than where she's at now.
Not moving in with the boyfriend will make it more likely that she'll have a more active social life, meeting and interacting with more people than if she goes down the living with the boyfriend route. Giving her a better overall uni experience and more development of her social skills.
Ditto for becoming a free agent or dumping him and getting a new boyfriend. With the emphasis on developing her woman to man social skills, as well as her relationship skills.
On top of that, from what we've been told, the boyfriend doesn't appear to be all that. Her family are dead set against them living together. He's studying Sports Coaching at Solent.
There's also the statistics on teenaged relationships. They rarely becoming a till death do they part relationship.
University is the best place in the world to meet new romantic partners.
I could go into anecdotal mode about the people I've known that stayed in exclusive romantic relationships throughout their undergraduate years. Vs the people that cycled through multiple relationships.
In my experience it's been the timid, play it safe types that have stayed in one relationship. And it's been the confident go-getter types that have had multiple relationships.
There are no compelling logical reasons as to why samarativona should move in with him, nor continue to be his exclusive girlfriend for the rest of her time at uni.
To move in with him and continue to be exclusive with him is the comfortable route. It's not the wisest route. Especially when a zoomed out look is taken at her life.