也 When expressing a series does 也 need to be before each object or just the last object
I) "也" means "too"：

"也" means "too" in English, this is an adverb put at the back of the last statement to enhance that the same situation……ect.

你没有车，我*也*没有。(You don't have a car, I don't have a car either).

你喜欢巧克力，我*也*是 (You like chocolates, I do, too).

II) "也" means "the end of a list things shown to others"：

When explaining a list of things, you can use commas or 顿号（slight-pause mark used to set off items in a series; punctuation mark (、) used between parallel words or short phrases; the caesura sign “、”placed between several proper names），but add "也" at the end. Here "也" doesn't mean "too" but just an end to tell others that the list of things I've listed comes to an end only.

我没有车、没有房、没有工作、也**没有老婆。(I have no cars,no houses,no jobs **and no wives).