Complex situation. What would you advise?

[latesummerearlyautumn]

I own a house, outright, no mortgage. It is worth around £140,000

DP owns a house, with a mortgage, which is worth around £450,000.

We have seen a property we both like and are keen to buy. Rather than going through the complexities of selling two properties, DP has suggested we remortgage mine with us both on the mortgage, sell his (houses here tend to go fairly quickly) and then both get a joint mortgage on the new property.

Are there any drawbacks I haven’t thought of?

@Dillydollydingdong

Sell yours, bank the proceeds. You move into his house. Then sell his and buy new joint property in the usual way, with the proceeds from both. Where's the problem?

this^

so you give up your equity and put him on the mortgage short term. You break up and he claims half?

cynic in me nothing is perfect, so no.

sell yours, move in with him then combine.

Wideawake2345 Your post was excellent and polite and I'm sure the OPs comment wasn't intended for you. I think its directed at the post above yours that included swearing.

I actually agree with @LivingLaVidaBabyShower (altho expressed rather insensitively) the fact is you should always protect yourself and your assets - or you may live to bitterly regret it... and there's few things worse than being in that situation.