You are correct that you will need TuboTax Business for the multi-member LLC. It is only available in a PC CD/download version for installation on your computer. Here is a link to buy Business: https://turbotax.intuit.com/small-business-taxes/
With Investment Income reported on a 1099-B, you will need Premier when using the online product. You could use Deluxe with the CD/download product installed on your computer. You can use this link to select either online or CD/download products and buy them: https://turbotax.intuit.com/
