Hi, Research has been done on kidney transplant on patients above 60 years of age. It shows that the graft function, as determined by serum creatinine level, is significantly correlated with the donor age. It is concluded that in the patients more than 60 years old, free of ischemic coronary disease or after correction of such a lesion could be safely get a transplanted kidney. If your father in law does not have any other risk factors done for pretransplant screening including immunological and viral status and urological examination; cardiovascular risk factors systematically estimated by medical history, physical examination, echocardiography, femoral arterial doppler then there is no additional risk to do a transplantation if the donor is matching.