Joe Jackson returns to L.A.

Joe Jackson has finally come to town, and moments ago, he arrived to the family's famous home in Encino, CA, TMZ reported.

It's the first time we've seen Joe Jackson since Katherine was reported missing over the weekend. Joe and Katherine live separated for years, even though they are not divorced.

Joe -- who spends most of his time in Vegas and rarely comes to L.A. -- pulled up at the Jackson compound roughly 30 minutes ago in a black Mercedes with Nevada plates, wearing his trademark fedora. TMZ was told he checked the mail and disappeared into the home.

Katherine is currently on her way back to L.A.

No word on how long Joe plans to stay in town or if he plans to meet up with the family to try to end the drama but he is reported to been living at the famous Jackson compound in Encino recently, even if no one knows how he got in and it appears he's a garden variety squatter.

Joe was seen entering the home today and yesterday, it appeared the home got a visit from some medical personnel presumably to perform some tests on Joe. 

The house is owned by the Michael Jackson Estate. Katherine Jackson has no legal claim to the property. 

Sources tell TMZ the Estate is paying $30,000 per month for the Calabasas home where Katherine and Michael's kids have been living. 

The only way Joe could be living in the Encino house legally is if he got permission from the Estate and sources connected with the Jackson family tell TMZ no such permission was ever given.

Sources tell TMZ, it ain't the Ritz because the house is currently undergoing extensive renovation.