Thanks Geeta. Oh no, I only earn a part-time wage, and that's only from now. Looks like I'll have to marry him there in that case, once his divorce goes through. Presumably there are all sorts of hoops to jump through, including being able to afford having him live with me?
You need to earn at least £18,600 per year to sponsor him for a spousal visa as well, unless you receive certain benefits, in which case you are exempt from the minimum salary requirement.
So, whether you marry in the UK or in the US, you would still need to have been earning a minimum of £18,600 per year for 6 months in order for him to get a visa to move to the UK.
If you earn less than this, you can top it up with savings, but between you, you need £16,000 + (2.5 x the difference between your salary and £18,600) in savings. So, say you earn £10,000 per year, you need £37,500 in savings for him to be able to move to the UK.
I forgot to say above I have three kids, one of whom is on the autistic spectrum. I actually receive DLA for that child and Carer's Allowance. Wonder if this would make it harder for us?
Actually, it makes it much easier - if you receive DLA and/or Carer's Allowance, then you are exempt from needing to earn £18,600 and you can just ignore everything I just said about salary and savings.