Mail designation for a SFH

[Benjamin Lenz]

Hey BP community! So I'm house hacking my SFH in Walnut Creek, CA. I live in the attached ADU above the garage, which has a private entrance to the right of the garage. To the left of the garage is the front door entrance to the main house where my tenants live. Furthermore, I'm considering converting the garage into an additional ADU, effectively "triplexing" my home. My question is, do you have any suggestions on the best way to have mail sorted? All of my current mail goes to the main house entrance door along with any packages, regardless of what instructions I leave for online vendors. Has anyone been in this situation or has experience with a similar scenario who could weigh in? I appreciate it!!

Ben