Which Business Address to put when starting LLC?

[Zach Herbert-Burns]

Hi BP'er. I am new to investing in RE and am in the process of starting an LLC for our first big RE deal. I need to put an address in the paperwork to start the LLC and want to put a PO box or UPS mailbox as the address. BUT, in order to open one of those I need the date the LLC was registered. It seems like I need the LLC started to open a PO box but I need a PO box before I can open my LLC with the State. If I put my personal physical address down in order to open my LLC can I change my business' address later on? Any advice? Thanks!