2 - PAPER OR SOFTWARE

You can often find paper tax forms and instructions at the Post Office. You're looking for Form 1040 (neither 1040A nor 1040EZ have Line 21 Other Income). Forms are also available for download here: http://www.irs.gov/uac/Form-1040,-U....ome-Tax-Return
You can also use tax filing software. Most are free to use, or charge only for state returns. Popular offerings include: H&R Block, TurboTax, TaxAct, TaxSlayer, etc. Even full-featured or deluxe versions can be purchased for anywhere from $10 to $30. http://www.pcmag.com/article2/0,2817,1904319,00.asp

Since we'll be attaching evidence of our demand for LM we won't be using eFile or electronic filing. Correct me if I'm wrong but as far as I'm aware, these options do not allow for scanning/submission of user attachments. Even though we won't be efiling, the software allows you to print a paper return for mailing (with attachments). I like using the software as it can find overlooked deductions and reduces the chance of math errors and results in a return more likely to sail through IRS processing. We don't want to submit an invalid return.