Presentment:
1.
a. The act of presenting to view or to the mind.
b. Something expressed, presented, or exhibited.
c. The light in which something is presented.
2. Law
a. The act of submitting or presenting a formal statement of a legal matter to a court or an authorized person.
b. The report written by a grand jury concerning an offense and based on the jury's own knowledge and observation.
3. The act of presenting a bill or note for payment.
I guess if you want to be technical, the use of the word isn't incorrect according to the above definition under #1.
"We invite you to offer your opinions following the completion of our presentment" sounds kind of weird though.
I think most people, even very intelligent and highly qualified business people would think, off hand, that it was a misstatement kind of like someone saying something is a mute point instead of a moot point.
It sounds like trying to be impressive but getting the word wrong.
If you have to go along with it at work, go along with it, but I don't know who thinks it's impressing anyone.
Just my opinion.