Janet Jackson continues her descent into post-career madness: she’s charging her mother for use of her Las Vegas condo. Katherine Jackson has asked the Michael Jackson estate to increase her cost of living expenses so she can travel to Las Vegas and stay in Janet’s condo, which the “What Have You Done For Me Lately?” singer doesn’t live in or use. TMZ incorrectly reported–then removed–a story that Mrs. Jackson asked the estate to pay Janet’s mortgage. Untrue. Mrs. Jackson travels to Gary, Indiana, where she still maintains a home. And she likes to stay in Vegas. The estate will tell the probate court in its next report that they’re giving Mrs. Jackson funds to use for these stays. Janet — since the battles this summer over Michael’s estate–refuses to be generous enough to her mother, sources say, and just provide for her at the condo. “There’s no way the estate would ever pay Janet’s mortgage,” laughed an insider. But my question is: what is Janet Jackson’s financial situation that she’s become so publicly unglued over money?