From Rhiel v. Central Mortgage Co., 2011 Bankr. LEXIS 1008 (Bankr. S.D. Ohio Mar. 30, 2011):
It appears to be well-established that district courts have supplemental jurisdiction over all claims that are so related to claims asserted in a bankruptcy case or adversary proceeding that they form part of the same case or controversy.
From Rhiel v. Central Mortgage Co., 2011 Bankr. LEXIS 1008 (Bankr. S.D. Ohio Mar. 30, 2011):
It appears to be well-established that district courts have supplemental jurisdiction over all claims that are so related to claims asserted in a bankruptcy…