Question for KAGIA & CO ADVOCATES

I have across my fathers document with sale agreement receipts pertaining to purchase of plot no 437 NKU DISTRICT final payment ksh 7000 on 9/04/1984.the file nmber is K/Agr/27/2, THEN YOU WERE LOCATED AT 5TH GREEN HOUSE NEHRU ROAD NAKRU. Pleaseadvise on the way forward