We are almost the same case, with Spouse. My friend has 1 kid, and I have 2 kids, but my youngest is Canadian Citizen. my spouse not working, friends spouse working, but both have open work permits. in terms of total household income, I'd say we are almost the same. initially both of us almost has the same timeline, up to RPRF request, which mine was on March, them was on Feb. so in line with our 1 month difference. then suddenly they ask them for extra police clearance last may and 1 week after MR. I was expecting I'd get MR too after a month as our per normal gap. The time I was expecting MR request, it did happen last June, 2nd week, showing on my account as action is required and saying we have request for medical exam, but I did not receive any message nor email and apparently a technical glitch which happen to most here. up to now, my account still shows action is required and have not receive any medical request at all. my friend finally got their PPR, and ours still stuck on this technical glitch with no MR yet. =(