Left rear lights not working properly

1. Purchased in 2016.
2. Replaced the left front headlamp in 2017.
3. Approximately a month later, pulled over for Left Rear lights out.
4. Replaced parking and brake lights on the left (front and rear).
5. Over the course of 30-days, replaced over 20-fuses.
6. Took it to the dealer, they wanted to charge $700.00 to "diagnosis".
7. Found a reputable electrical mechanic locally. He could not find the issue, and recommended a jumper on the fuse.
8. It worked; I did not have to replace fuses, and the lights were staying on.
9. Fast forward to now. All issues only on left side.

This is the issue:
Turn indicator only, okay!
Turn indicator, with lights on, okay!
Turn indicator, and braking, okay!
Turn indicator, with lights on, and braking, Left rear lights go out

When I activate my alarm via the fob, the only left rear light on, is the reverse light.


Any suggestions? I have en-route, a complete set of housings (right/left, front/end) to replace the ones on the vehicle now.