I think they should not be allowed to vote unless they pay taxes in Lebanon or they only have the Lebanese Citizenship (this covers folks in the Gulf). Reasons for this:
1- people who decide have to pay for their decisions. Case in point, the expats came in the tens of 1000s and voted for the possibility if war and against reform. These people live in countries where if Murr was there, he would be in jail due to yesterday's clip on OTV. These people live in countries where they have laws and have 24/24 electricity... So they do not care about these things. They easily buy the Wileyit el faqih story.
2- the ratio of Lebanese outside to the Lebanese inside is very high compared to the Americans outside and inside USA (maybe more than 100 times). So their impact could be huge compared to the US situation.
3- And more importantly, I do not want the Lebanese Parties to start campaigning in Canada (and other countries). I may kill the future movement representative if he knocks at my door and offers me a can of dark tuna to vote for Sa3d

I want at least a can of salmon