"Proper diligence" means being thorough and careful in completing a task or work, with attention to detail and ensuring everything is done correctly. Full definition
This should not deter you from choosing the funds that invest after doing proper diligence and invest in only high or very high rated credit / bonds. (vipinkhandelwal.com)
With proper diligence you can limit the total tax liability of your business. (rocketlawyer.com)
Bring a fiduciary means advisors must show they have performed proper diligence for investment recommendations. (newconstructs.com)