'for latter' is not correct and is not usable in written English.
You could use 'for the latter' instead. For example, "We have two options: to do this now, or to wait for the latter."
His work set examples for latter research.
The electrodes were dried in the air for latter testing.
For latter use, let us state some useful inequalities.
For latter applications, we list up some lemmas.
With the LCV techniques samples can be treated with ETDA and preserved for latter analysis.
Terry captain for latter game, with Capello stating he is "innocent until proven guilty" of racism allegations.
Die-off reports are fertile ground for latter-day anxieties.
This may be particularly pertinent advice for latter-day converts like NME.
For latter-day enthusiasts, Schiele drawings are, surprisingly enough, still available -- even affordable.
There are no more telephone booths for latter-day Olivers to barricade themselves in.
Mr Rohmer has been attacked in France for latter-day royalism.
