A legal battle has developed over money and property left by the late Tommy Dorsey. The entire estate has been estimated at three-quarters of a million dollars. He left no will. His wife, Jane, who was seeking to divorce Tommy at the time of his death, has asked to be appointed administratix of the estate. Tommy was married twice previously. He had two children from a previous marriage. The two children have entered objections at Probate Court in Greenwich, Conn. to the petition filed by Dorsey's third wife.