Film the mechanical room, and never film the lobby
Access inside occupied buildings is escorted and permissioned, so what you may publish is decided before you arrive rather than after you edit.
A building engineer walks you in, stands with you, and walks you out. Nothing about that visit is yours to publish, and the written yes you need comes from the manager or the association, not from the resident whose unit you were standing in.
Ask when the work gets scheduled, not when the truck is at the loading dock. Requests like this get routed through a management company and sometimes past a board, and an answer takes a week even when the answer is friendly.
The lobby, the address plaque and the view out of a unit window are the three shots that identify a property in about a second. Each one is the association's call to publish, and none of them is yours.
Some buildings say no permanently. Others say yes to the mechanical room and no to anything above it. Keep a short list of the ones that have already agreed in writing, because those are the properties your camera can actually live in.
A vendor who posts recognizable footage of a building without asking often stops being a vendor. Losing an account over a video happens here, which is why the rule belongs in writing rather than in the judgment of whoever is holding the phone.