I also did a softlanding last year but used the services of a relocation company for the mail forwarding. Had no issues. They received my card after 45 days or so and sent it to me by DHL and i got it in a week
As long as the address is in the province, i doubt it will be an issue. I did a soft landing last year for 3 weeks and gave the address of a relocation company i booked in Montreal. Everything went smoothly.