Hey guys just a quick question. If i store the lego in big boxes and just forget about them and place them in an attick for a very long time. Will the box remain in the same condition? Thanks. Any advice will be greatly receive.

"forget about them" is the hardest part.

I think in an attic, I'd be most concerned with extreme temperatures, but that'll heavily depend on where you live.

Also, since you said big box, makes sure they're not stacked inside to where the bottom one(s) can get crushed.

 

I believe there's some actual blog/articles on storage, but also a bunch of discussions, one here for example:

http://community.brickpicker.com/topic/4919-general-storage-questions/?hl=storage

Is the attick climate controlled? You may also want to wrap them in craft paper to keep them from sticking together and prevent shelf/box wear.

Thanks for the quick reply. Thanks lodi for the link. The attick is not climate control. I live in southern california so the weather is not really an issue.