Change solicitors. There are many useless ones out there who drain your money and do sod all for it. Have no qualms about sacking them. Likewise, there are many out there who are beyond competent - so choose wisely. I've had experience of both - and the difference is huge. It sounds like you're unequal shares, as you both have different contributions (and your contributions will change over time - as you pay off the mortgage. 1. You will have contributed 25% deposit and 20% of any payments (so, at the very beginning, you contribution will be most) 2. Partner will have contributed 80% of any payments (at the end, he'll have paid 80% of the mortgage, or 60% of the total) if it was equal, you would both get the same amount regardless of contribution. So you need a deed of trust to be drawn up. This needs to be as detailed as possible, so make sure you find a solicitor who knows what they're doing. If you fall out and end up arguing about it, this document will save all the pain. You don't want it to be ambiguous. I found this https://www.samconveyancing.co.uk/news/conveyancing/can-you-have-unequal-shares-in-a-property-4387