Yea it ain't 7 yrs, it use to be, but when the BK laws were changed in 2005 they changed it. If you file chapter 7 bk, which most people do, you can't file again for 8 yrs. Now if you have previously filed chapter 7 bk and the next time you want to file, you can file chapter 13 bk, but you still have to wait 4 yrs.
BUT, since most PERSONAL bk cases filed since 2005 are now not being discharged, they are beinf set up on a scheduled payment plan, you could go back at anytime and let the bankrupy judge decide what you should do.
Most business BK's and the "J's" is are chapter 11, that is an automatic re-organization so that your bills get paid. No too many private citizens file chapter 11. As for a business refiling after, im sure all they would have to do is file under another "group" within the company to get around any time limits. but as a private citizen filing a personal BK, it WAS 7 yrs, now it is either 4 or 8, depending on which chapter you file.
I don't have a link, i called a lawyer friend you does BK's, he told me. so i am simply passing on what i was told.... well, we all know how much lawyers can be trusted, so maybe thats not a good thing either............