I was wondering if anyone could help me understand how to analyze a property to determine if worth buy and hold?  I found a few properties that are in need of repair.  But would like to hear how everyone else determine costs on repairs? Thanks.

@Rogelio Vivero there is a rental property and rehab calculator under the "TOOLS" tab. Indeed, if you are inexperienced then estimating the repairs/rehab will require the help of others. Ideally you can have a trusted contractor issue a bid for a scope of work or perhaps the most skilled person you know in construction. If you are considering properties that require a significant rehab, then buying/reading Jay Scott's books on rehab are a pre-requisite. Get his books and read them before moving forward. 

& always have an exit plan that doesn't break you....