“At your convenience” is better replaced by “soon” or “as soon as you can”.
Commence
Use “begin” or “start”.
Consensus
The spelling “concensus” is wrong. A “consensus” is the result of common consent; it has nothing to do with censuses. This is an overused fashionable word for the moderate undisputed middle ground in politics. It can sometimes be replaced by the simpler “agreement”.
Centre
Traditionally things centre ON, UPON or IN other things, though an institution may be centred at a place. Many people still dislike the combinations “centre around” and “centre about”, as in “many legends centre around this holy shrine”.
Capitalise
Replace this vogue word by “draw upon” or “profit by” if you can, as in “to capitalise on her legal experience”.
Bona Fides
It means “sincerity”, good standing. If you use this Latin expression, use it with a singular verb, as in “his bona fides was questioned”. “Bona fide”, which looks like the singular form, is an adjective not a noun, as in “a bona fide query”.