Which visa should I apply q2, q1, L

Jim, how long will your each visit be? If it's not too long, I mean within 180 days, you don't need to apply for the Q1 type. Both Q2 and L types are ok. Does your wife have other family members to write this invitation letter? If yes, it's better to ask such a person to issue you the letter. I'm not sure whether the letter written by your wife works because she is living in Canada now.