The invention is directed to generation of hematopoietic multi-lineage progenitors (HMLPs) from endothelial cells (ECs) by effecting forced expression of certain transcription factors in the ECs and culturing the ECs in serum free media in the presence of endothelial feeder cells. The HMLPs generated in accordance with this invention can produce erythroid, lymphoid, myeloid, and megakaryocyte cells. These generated HMLPs can be used in therapeutic treatment of disorders including hematopoietic conditions.