They don't need a bank account as long as you have one in their town.

I’ve attached a cost sheet.

I would focus on ease instead of interest rate.Just use the same bank where you normally bank with and just create another account.I.E. if you bank with JP Morgan Chase, just create another personal account and just run transactions with that account.I would also create an online storage account where you can save your receipts. 

What if that LLC has lots more land attached then just the pads? 

Quote from @Geoff Prickett: Anyone recommend a great bank or credit union for working with Series LLCs?

A company built several properties, and sold IN HOUSE to 2 of their members, but the sale has a private note attached to it.

Meaning you don't get any protection out of it while you have to deal with it, move the tile behind the back of the bank, because of a low interest rate residential loan - or you a higher rate commercial 5 year balloon - risky for its own reasons.You will probably disagree with me here, but personally I believe that if you start out and buy a 200k single family with 20% down the disadvantages of an LLC outweigh the potential benefits by far.

I've attached a screenshot of the letter of approval and a link to their website.

Banks around me are happy to sign extensions.

@Jamie Banks if you are using them for account too, I can see it but is there any advantage if you use your current bank?