1) ask seller to produce original documents of title ie sale deed
2) ask company to obtain NOC from society for sale of office space
3) no dues certificate
4) you can take search in sub registrar office as to whether title is clear and marketable
5) board resolution has to be passed by company for sale of office space in society
6) if property is not mortgaged to any bank then you should not have problems after registration of sale deed
7) bank transfer should be in name of company
8) 1per cent TDS has to be deducted