I used the Sherman Oaks address before and the mail was refused/RTS.

I had success with this address:

MANAGEMENT PRODUCTION ENTERTAINMENT
9229 W SUNSET BLVD STE 301
WEST HOLLYWOOD CA 90069-3417

Sent photo: July 2020
Received photo signed and personalized: November 2020

Sent photo: 11/6/2020
Received: 11/23/2020
Address:
BOXING CAT
11500 HART ST
NORTH HOLLYWOOD CA 91605-6203


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Sent photo: 11/6/2020
Received: 11/17/2020
Address:
11054 VENTURA BLVD # 243
STUDIO CITY CA 91604-3546


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Sent photo: 11/6/2020
Received: 11/21/2020
Address:
16 MOUNT BETHEL RD # 371
WARREN NJ 07059-5604


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Sent photo: 8/8/2019
Received: 11/21/2020
Address:
HAMILTON HODELL
20 GOLDEN SQUARE
LONDON W1F 9JL
UNITED KINGDOM


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The website says under the contact info that the agency does not accept autograph requests and to contact agents or managers.

SENT: 10/9/2020
RECEIVED: 11/9/2020
ADDRESS:
1520 CAMDEN AVE APT 105
LOS ANGELES CA 90025-3443


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SENT: 10/22/2019 RECEIVED: 11/2/2020 ADDRESS: SHANAHAN MANAGEMENT PO BOX 1509 DARLINGHURST NSW 1300 AUSTRALIA She signed the photo and included a note on the cardboard insert. http://surfmypictures.com/photo/f30810577725c83c/tr2v9/IMG_4356.jpg Uploaded with surfmypictures http://surfmypictures.com/...

SENT: 6/22/20
RECEIVED: 10/29/20
ADDRESS:
PO BOX 1218
NEW YORK NY 10113-1218


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SENT: 9/17/20 RECEIVED: 10/7/20 ADDRESS: RED BIRD PRODUCTIONS 406 BROADWAY # 345F SANTA MONICA CA 90401-2314 The photo was returned signed, along with a very nice card. http://surfmypictures.com/photo/9818c2a54bf2123b/wbxee/image_6483441.JPG Uploaded with surfmypictures http://surfmypictures.com/ph...