I would NOT reccomend sending anything to Johnny Wrights office in Orlando, FL.
He represents many artists including Janet Jackson, Backstreet Boys, Jordan Knight, and the list goes on. Stevie Brock another artist who is represented by him told me himself that they do NOT pass on fanmail. So its pointless writing the Orlando address (Wright Entertainment)

No I have never seen that address

Hi

You might want to try and wait until they go on tour. Catching them via venue is probably the best chance of getting an autograph. At least, I've seen many many successes via venue from them, and so far, none from the address you posted.

I was just wondering if someone had receive a success with this address :

Jonas Brothers
Wright Entertainment Group, LLC.
P.O. Box 590009
Orlando, FL 32859
USA

Thanks

Julie