A few questions please.

[Kaygrace 0]

Even when spouses reside together and file taxes jointly, the other spouse is not required to file an I-864A. If the one joint sponsor meets the 125% requirement for their household size plus the intending immigrant, then that is all that is needed(plus an I-864 from the primary petitioner/sponsor of course). They fill out an I-864, provide their joint return transcript and a copy of their W-2 to show their separate individual income. You and your father should read through the I-864 instructions for all the details of what is required. http://www.uscis.gov/files/form/i-864instr.pdf

Since Canadians do not receive an I-94 when visiting, put 'None - Canadian Visitor'

I've been reading the I-130 currently.

I didn't know if I should add my mom because my dad hasn't been employed that long.

on the 1-94 section of the I-130 it only has where to put his 1-94 number & expiration of it and the date he entered.

Do I not fill any of that out? or just the date he entered and that he entered as a visitor?

The only place I see is " He/she arrived for student,visitor etc?