Building a duplex or tri-plex to live in???

[Kevin Koone]

Hey guys, been lurking here for a while and wanted some feedback.  We're going to be moving soon and I have been looking around for duplexes etc to maybe buy and live in to start my investing that way.  Problem is in the area we're looking in there are not many at all let alone any for sale.  There are some lots scattered that could work for it, but I'm trying to figure out if in the long term this would be a good plan?  I don't have a lot of details yet but what all should I be considering?  Thanks for the feedback.