As used to describe writing, “expletive” denotes the phrases “There are/is/were/was” and “It was/is.” Writing style usually improves if you expunge expletives.
(1) “There are three disadvantages of incorporating in Arkansas.”
(1a) “Three disadvantages follow from incorporating in Arkansas.”
(2) “There is an alternative to staggered terms for board members: class terms.”
(2a) “An alternative to staggered terms for board members is class terms.”
Plunge right into you sentence, without the emptiness of an initial expletive. There would be no better way to improve your style.