Arthur, I'm interested in following this thread to see what if any suggestions come up... I personally would be leery of trusting software to calculate rehab unless it was VERY user friendly and able to apply user inputs and revisions to meet specific needs/variables and regional costs etc (a la what a basic Excel spreadsheet can do)....
I have my own Excel Spreadsheets (one for Texas and one for New England), but I'm finding myself revising the default numbers often. Also, these spreadsheets were initially created with the help of other investors, and revised as I gained applicable experience... Let me know if you find anything intriguing.
Brian R. Baker, MBA
Texas Housing Partners / New England Housing Partners
brian@texashousingpartners.com / daphne@newenglandhousingpartners.com