Paul Ceglia has had a tough time keeping his Facebook ownership claims from being completely derailed, what with his past lawyers at DLA Piper bailing out on the case, the judge ordering sanctions against him, and allegations by Facebook’s lawyers at Gibson, Dunn & Crutcher that he’s a fraud who forged core evidence. But Ceglia has proven once again that he can attract a national law firm to join his cause. Next up? Milberg LLP.

The New York-based plaintiffs firm is the latest to agree to press Ceglia’s claims that a 2003 contract with Facebook founder Mark Zuckerberg gives him at least a 50 percent stake in the company. “We took a good hard look at all of the information available, including evidence in Mr. Ceglia’s favor, and we believe he deserves to have his day in court,” Sanford Dumain, chair of Milberg’s executive committee, said in a statement released Monday.

Dumain didn’t respond to a call seeking an interview. Facebook counsel Orin Snyder of Gibson Dunn did not respond to a request for comment, and a spokesman for the company declined comment.

Ceglia’s seemingly Quioxtic crusade was given a big PR boost in April 2011 when DLA Piper took him on as a client. DLA’s Robert Bronlie told us at the time that he and his firm “would not have gotten involved if we had any doubts about the facts or evidence in the case.” (Milberg’s statement, we note, doesn’t go quite that far.)

As Facebook and its lawyers relentlessly attacked the authenticity of the contract at the heart of the case, Ceglia’s lawyers at DLA Piper and Buffalo-based Lippes Mathias Wexler Friedman withdrew in June. Jeffrey Lake of San Diego-based Lake APC subbed in for DLA at that time. But by October, he too had withdrawn. Ceglia’s longtime local lawyer, Paul Argentieri of Hornell, New York, and Dean Boland of Boland Legal in Lakewood, Ohio, have been representing Ceglia since then. Boland said in a statement Monday that he and Argentieri looked forward to working with Milberg as their co-counsel.

In January Facebook swayed federal magistrate judge Leslie Foschio in Buffalo, New York to sanction Ceglia $5,000 for failing to give Gibson Dunn access to his e-mail accounts. Last month, the judge ordered him to pay Facebook $75,776 in attorneys’ fees.

So far, though, discovery has all been one-sided, according to Ceglia’s new lawyers at Milberg. That’s about to change, they say, now that Judge Foschio has directed both sides to propose a plan for full discovery by April 4. “We look forward to examining records from computers that Mr. Zuckerberg used when he was a freshman at Harvard and other records that will help answer questions about the ownership of Facebook,” Milberg’s Dumain said. “We hope that the court will rule that the time has come for that process to begin.”