I own a small startup that is not yet profitable. We need to file taxes for 2014 and 2015. One of the owners of the LLC is not a US Citizen yet, but is married to another owner. You will also need to file the personal returns for 1 or two of the owners. This is for a LLC based in NY state. We use quickbooks, so calculating our revenue, COGS, etc in each year shouldn't take too long.
Our preference would be to negotiate a fixed rate to pay, rather than working on an hourly bases.