hi, I have 2 questions about TM30 from bar's friends

1) if I rent room and I do the TM30, then at the end of rent I go guest to friends in another room, can I continue to use the TM30 of the old room even if the rent contract has expired and I'm gone? or the owner will report to immigration that I'm gone?

2) If I rent a room with TM30, and I rent a second room in the same time and same province, and the owner do the TM30 of second room (I not leave the first room because I plan to return) , do I have to report TM30 again when I return to the first room? in few words, will the new TM30 delete the previous TM30? Thanks