Haploidentical Donor Bone Marrow Transplant in Treating Patients With High-Risk Hematologic Cancer

Inclusion Criteria: * Chronic myeloid leukemia (CML) in accelerated phase (AP) * Acute myeloid leukemia (AML) with high-risk cytogenetics \[del(5q)/-5, del(7q)/-7, abnormal 3q, 9q, 11q, 20q, 21q, 17p, t(6:9), t(9;22), complex karyotypes (\>= 3 abnormalities)\] in complete remission (CR)1 * AML \>= CR2; patients should have \< 5% marrow blasts at the time of transplant * High-risk ALL defined as: CR1 with high-risk cytogenetics; t(9;22), t(4;11), or hypodiploid (\< 45 chromosomes) for pediatric patients; t(9;22), t(8;14), t(4;11), t(1;19) for adult patients; \> 4 wk to achieve CR1; \>= CR2 (patients should have \< 5% marrow blasts at the time of transplant) * Myelodysplastic syndromes (MDS) (\>int-1 per IPSS) after \>= 1 prior cycle of induction chemotherapy; should have \< 5% marrow blasts at the time of transplant * Multiple myeloma (MM) Stage II or III patients who have progressed after an initial response to chemotherapy or autologous hematopoietic stem cell transplantation (HSCT) or MM patients with refractory disease who may benefit from tandem autologous-nonmyeloablative allogeneic transplant * Chronic lymphocytic leukemia (CLL), non-Hodgkin's lymphoma (NHL) or Hodgkin's Disease (HD) who are ineligible for autologous HSCT or who have resistant/refractory disease and who may benefit from tandem autologous nonmyeloablative allogeneic transplant * Patients who have received a prior allogeneic HSCT and who have either rejected their grafts or who have become tolerant of th…