I use RS Means Cost Datahttp://rsmeans.com/60215.aspx 

If you need advance workflows, or multi user abilities then you'll probably have to fork over some cash though, but it's not expensive at all.  

Not being local it's hard for me to gauge fully though as all I really have to go off of is word of mouth and some internet searches.

Originally posted by @Jake Thomas: I won't show these properties and on average they sit twice as long or longer.I wouldn't say that openly on the internet;)There is a company here in town that tried to make it a point how much people agents getting paid.

Forum users love crunching through the numbers.More broadly, if your goal is buy-and-hold so you can transition into RE full time in 6 years, you should be looking for cash flow first.

Hey @Jacob Pereira Ideally, I would get basic cable internet service (in my area it costs me about $35/month) without an annual contract.

Real Estate Rewind Starting overhttp://www.biggerpockets.com/files/user/brandonatbp/file/real-estate-rewind-a-biggerpockets-community-bookGood Luck Paul 

There are plenty of users who manage multiple properties with just excel.  

Real Estate Rewind Starting overhttp://www.biggerpockets.com/files/user/brandonatbp/file/real-estate-rewind-a-biggerpockets-community-bookGood Luck Paul

However, an internet search reveals that she no longer practices real estate law because she resigned/was disbarred for "engaging in conflict of interest in a real estate transaction and neglect."