Wow, thank you all so much.
I am a housewife so I don't have pay slips or anything of an income, hubby is the breadwinner.
So far we have almost all of our documents together, such as proof of identities, joint bank account, marriage cert, proof of address, correspondence, we own our dog jointly, things like that.
And we do have a small amount of saving to take with us, plus as my mothers carer I will be earning and hubby will be seeking work ASAP.