We have received some promising news recently about getting married by mid-may
That's good news
. Fingers crossed.
and so I wanted to get a jump start on having documents prepared for the next visa. But reading the forums I'm getting confused about which visa I would be applying for. Would it be the FLR(M) or ILR?
You need to apply for FLR(M), which is valid for 2.5. years.
You have to spend 5 years living in the UK on two FLR(M) visas before you can qualify for ILR (permanent residence).
Then once you hold ILR, you can apply for UK citizenship if you so wish.
Also, I wanted to know if there is a website I could go to to find what necessary documents are needed when applying for the next visa.
It's basically the same requirements as for the fiance visa, except instead of providing evidence of plans to marry, you provide your marriage certificate, plus evidence of living together since you arrived in the UK (i.e. utility bills, bank statements, NHS letters, tenancy agreements etc. in each of your names).
Try here for general visa requirements (though it's very vague and doesn't give document specifics):
https://www.gov.uk/uk-family-visa/partner-spouseAnd see Appendix FM 1.7 for financial requirements and documents required:
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/957305/appendix-fm-1-7-financial-requirement-v6.0-ext.pdfPlus Appendix FM-SE details the format that the financial evidence must be in:
https://www.gov.uk/guidance/immigration-rules/immigration-rules-appendix-fm-se-family-members-specified-evidenceYour best best though, is to detail your application situation here and we can help you work out the documents you need.