Limb looks dead & could be ready to fall - dangerous situation for any cars or pedestrians passing on street.
Tree at 1515, but branch affecting 1513. Gumball tree looks like it needs trimming on other side too...
Overgrown tree roots have caused DAMAGE ; Retaining Wall has become unsafe due to damage caused by overgrown tree roots; SIDE WALK is OFF SET; creating a TRIPPING HAZARD.
Do not contact Tenants; contact Owner; noted below.