What are my obligations regarding TM30 reporting as a Non O A visa holder in Thailand?

Gday, I'm hoping to get some confirmation of what my obligations are regarding TM30. My situation is as follows : I rent a condo in Pattaya and have done since Nov 2017 while on a METV. When I first moved in my real estate agent went to immigration and did a TM30 for me not realising that it wasnt needed on a METV. The owner of the condo is in Australia. Fast forward to now and I have a Non O A visa and the TM30 stapled in my passport.

I was under the assumption that the building management were responsible for reporting your arrival to immigration however they have a sign up at reception stating that they will not do this and it is the tenants responsibilty. Is this correct ?

I was also told by another person that since my address hasn't changed and I have the original TM30 in my passport then there is no requirement for me to report each time I arrive.Is this also correct ?

Can anyone shed any light on these 2 enquiries and steer me in the right direction.