TRP/TRV interview + ARC

What are standard interview questions asked for a Temporary Resident Visa/Permit? My husband has an interview on July 15th with consulate in Sao Paulo and I am very worried. He had a removal order carried out on May 25th and had an Inland Spousal Sponsorship in process. We were very upfront about the reasons of him wanting to come back, wait for decision on spousal sponsorship and to be with his family. I should also mention that he was in Canada for over 11 years and is very established here, owns a house & car, all family is here, etc. I have been reading that an interview is a bad thing. Also anyone who has had to obtain ARC were you able to pay the $400 without having to send in a formal application/letter? In our TRV application the lawyer's synopsis explained all reason's requesting ARC, had all support letters & financial information. I am hoping that monies can be paid without wasting time with more paperwork. I've heard that the Program Manager at a consulate has the authority to grant ARC. Is this true? tia