NO. Your LC belongs to your old company. So, if the new one need you, why not do it again asap?
2.如果一年后公司解散,我是否能够继续挂在老板的名下直到485排期等到并于180天后换工作?
If you get pay, it will be ok. If not, how can you prove that you can be supported without being burden of America