1.Review of eligibility refers to what Class of Permanent residence you applied for and if you qualify for that category e.g.( spousal sponsorship)
2. Background check in my opinion as No knowns for certain except IRCC refers to security checks, criminal history & travel history to name a few...
3. Interview not required means that IRCC is satisfied with the supporting documents such as marriage being genuine etc and as a result dont require to see you in person.
And your last question is unique to each and every applicant... everyone have different timelines because each case is different. After my husband medical was passed exactly 2 month after he received pre-arrival letter and passport request.
Hope's this helps clear the air a bit for u.
Trinirock thanks very much I sincerely appreciate it and
1. yes it is spousal app.
2. My spouse traveled to the states a few times but does nt have any issues with the law or US immigration.
3. Since it states no interview required does that mean this may change ( we will contact you if one is required ) will they will do the background checks first and if an interview is require they will then contact us later on and or its in the early stage to predict?
In your spouse case that was really quick with the decision a very good thing indeed, happy for u ... hoping we will get some good news soon my spouse medical was received and passed in August almost 2 months ago.