I think it will have to come down to trial & error.

The calculator will allow you to analyze profit, holding costs and more, calculate profit over 45, 90 and 270 days, and lastly, create a printable PDF report to give to lenders, partners, investors and others.Members of BiggerPockets get to test the calculator for a single property evaluation, but in order to use it past the trial, you will need a PRO Basic or PRO Account.70% Rule CalculatorThe 70% Rule Calculator is designed to help you quickly determine the maximum purchase price for a real estate flip, and is available free to use for all members of BiggerPockets.Navigation Changes:We've added a new item to the site's blue navigation menu --> ANALYZEThat menu now points to our NEW Investment Calculators as well as our Deal Analysis Forum for fast and easy access.Additionally, if you look to right side of the blue nav menu, you'll notice that there is no longer a NOTIFICATIONS menu item.

All marketing in any business is a test of trial and error.

I think it would alleviate some of the trial and error investors go through with the more traditional methods of finding contractors, and some of them not being very good.If it was implemented, there's also value added in this way: if contractors are reviewed/recommended who are not a part of BP, ones with positive reviews could/should be contacted and invited to join the site...would add tons of credible knowledge and experience from the contractors' point of view...which we all learn from.

Remember when claiming damages to the property, be prepared to have the contractor present during the trial.

University classes aren't really an option, I don't find myself as motived when I am being taught in a class, I'd rather learn on my own via experienced investors and through trial and error...don't get me wrong though I love learning just not in school format.I have a general idea of the various types of investors, the passive rent based person then you have the flipper, the developer and finally the investor who's strategy incorporates both rental, flipping and development.

They do have a 7 day trial, but make sure you cancel if you don't like it.

It's definitely trial and error, so pay close attention to the reaction of your campaigns.

My experience tells me that to be successful in business or anything else for that matter takes allot of work, lots of time, effort, dedication, commitment, ups and downs, trials and tribulations and yes, many times it DOES take money (even if it's not your money or even a ton of it, nevertheless it takes some). 

., and should be filed with the papers pertaining to the underlying transaction.Contracts, notes and Lease Agreements still in effectDeeds, Mortgages and bill of SaleDepreciation SchedulesGeneral, Private Ledgers, Year End Trial BalanceInsurance Records, Current Accident Reports, Claims Policies, Etc.JournalsLegal CorrespondencePatents and related papersProperty Appraisals by Outside appraisersProperty Records, including costs, depreciation reserves, year-end trial balances, depreciation schedules, blueprints and plansRetirement and pension recordsTax returns and worksheets, revenue reports, and other documents relating to determination of income tax liability.Trademark registrations and copyrightsYear-End Financial Statements