You have beefi effiployed to complete the 2012 federal ificofne tax return fof Leopold and Gretchen Klein. The Kleins have provided you with original copies of all third party documents filed with the IRS, such as W-2s and 1099s. They have also provided you with adequate written documentation to substantiate all transactions mentioned in this case. Lastly, they have provided you with copies of their respective 2011 Federal income tax returns. (Note to student: Both 2011 federal income tax Returns are not included in this practice set, although you have determined each to be accurate.)