Family applications ask you to prove something you have never had to document before, and the standard of proof is higher than most people expect.
We tell you plainly what counts: registered marriage or partnership records, a chronology of the relationship, shared financial and residential evidence, correspondence across the period you were apart, and statements from people who can speak to it. Dependent children are handled on the same timeline as the principal applicant.
Where an earlier application was refused on relationship grounds, we read the refusal notice line by line and address each reason with evidence rather than assertion.