How To Proceed?

Hi Leon/and other valued Patrons,

Need your advise please. Our PR cards will be expiring in April 2012. We (wife and daughter) have lived in Canada since becoming PR for about 350 days till date. Since I lost my job in Canada last Aug `11 and since my mother-in-law was very sick and living alone, we had no option but to return back to our native country. I have now got a job in Canada and plan to return back by 20th August 2011. My concerns are :
1) Since I will not be able to meet my residency obligation will I have a problem to enter the country? (will I be questioned at the POE even though I will be having a valid PR Card?)
2) If I can enter, then I plan to set up home and bring my family sometime in Nov/Dec`11 (since my wife has to still take care of her mother who is a widow as well as make arrangements for her to stay when she return to Canada). At that time, will my wife & daughter be allowed to enter the country and stay with me? As I intend to bring them back with me, will I have any problems to enter again?
Appreciate your advise please on how best to proceed. Thanks!!!