It was in the UK.
I asked at Avvo and got two responses from lawyers based in the US. The first just said "Get a lawyer".
The other has since pointed out that I can file for a I-601 for a waiver, under section 212(h) of the Immigration and Nationality Act after my interview at the embassy should my application be denied (which it probably will). He was also the one which told me that the US embassy in London treats cautions as convictions. While I could contest that it wasn't a real conviction it would be difficult and near impossible without legal help.
He finshed by saying if I was refused a visa and a waiver I could try and prove that my fiance would be under 'severe hardship' without me - but that too is difficult to prove.
I also asked the same question at Right Legal Advice but was answered with what seems to be jibberish, I don't know, maybe you can make sense of this:
"You need the legal wording in application form, which will cover it and not held you liable for misrepresentation, which could be the base of refusal.
We can help you in this regard.
Let us know when you care filling the application forms".
This whole thing is just eating me from the inside. I'm such an idiot. I'm so scared that this is all just going to blow up in my face because of my past stupidity (yes, I'm a worrier). Any knowledge, tips, advice, anything you have that might make the process easier.
-Will I definitely need a waiver?
-How difficult will it be to obtain it and the visa?
-Are there any statistics on how many people with similar problems are successful with their applications/are granted visa with waivers?
-Do I have any real chance or is my dream and impending marriage over?
-Can I stop worrying so much?