Paperwork Update

So after thinking about it for the last 2 months, I decided I'd better renew my BCIS approval under the I600a application rather than let it expire and go under the I800. I hope I'm not too late as my I171H expires next month. So I went and got fingerprints taken by my local police department for the Adam Walsh Clearance. Then I hand delived them to my homestudy agency. I also gave them the letters/forms from my and my girls' doctors saying we are healthy and free of communicable diseases. I still need to get another employment verification letter and financial statement before having an updated homestudy done. I guess I now have a motivation to clean the house! I also need to send the I600a application with the check. I sure hope I don't have to do this again. I figure I'll have to take advantage of the free renewal again, but I don't want to have to wait another 3 years, which is when all of that would expire. I know I'm not the only one doing this, but it sure would be nice to have a definitive answer as to whether it's absolutely best to renew.