LLC and banking and EIN and UBI questions

[Nathan Justus]

I'm hoping to get clear guidance here on what I need and don't need to do. 

I'm working backwards here as I already bought two properties under the LLC name. Very much shoot, ready, aim.

I haven't got any guidance on the legal items I need for setting up a business bank account etc.

What I have:

1. LLC setup via the state website. (Washington)

2. EIN issued from the IRS (Don't know if I needed this given its just me on the LLC and its a pass-through-entity)

3. Operating agreement which I created on a website (Title company needed this in order to close) 

What do I need or not need to set up a business bank account in the LLC. (Need this so I can sign a property management contract and fill out I9 etc)

Questions: 

1. Do I need a UBI (actually get a business license? Seems like it if I look at the bank checklist of items needed for the account)

2. Did I even need the EIN for the LLC (This cost $, wondering if I flushed that money)

Or should I just consult an attorney and start over. like Corporatedirect.com

Confused. I have no idea what I'm doing. Please help