QUOTE(weedebz @ Jun 18 2007, 06:43 AM)

Decided just to go for it and prepare and file first step...we have several months to worry about and sort out the support issue. So wish me and Nick luck.
here's a thought....does a co-sponsor need to be related,we have had offer of a friend of Nicks family being my co-sponsor as I'm actually intending on living off $7-8K worth of saving plus Nick will get job when we go back to his home town. His parents will be helping out too but as far as number cruching goes they are just under the 125% mark. Nick has 5 siblings 2 of which work but still live in the family home, would their income be added too, if so then they over the 125%
No, the cosponsor does not have to be related, but the consular officer needs to feel confident that whomever you choose will put their money where their mouth is (so to speak) if it comes to that.
You're sort of confusing two issues here (bold print). His parents can sponsor you, but if their combined income is not over the suggested 125% mark, they likely do not make good candidates to be your cosponsors. His parents would also have to report how many dependants they have claimed on their tax returns.
I assume your fiance's siblings do not report their income on their parent's tax returns, so their income cannot be factored into the parent's sponsorship. The only bearing they would have on the parent's sponsorship at all is whether or not his parents claim them as dependants.