The major reason they fail is usually poor installation. 

If its something more major, then you came out on the bad side of your bet.

@Mike HernI bet you can go to your local grocery store and also find these types of deals like you can your favorite cereal.

Hi @Zachary Reiff,From an accounting/finance standpoint, QuickBooks Online is your best bet for an all-in one software.

I really see Columbus Ohio as an extremely safe bet for the next 10-20 years.

Honestly that's what I'm betting on!     

Start by consistently analyzing deals and read a few books like "rich dad poor dad" and "richest man in babylon"

When problems arise later on the manufacturer says it's not the product that failed it's the contractors poor application of the product that is causing issues.

For Flips:at least 50% of liquid cash for unexpected expenses or cost overruns of the property’s rehab budget additional to downpayment financing, closing costs and improvement funds.Too often you hear investors blaming the realtor for their poor decisions.

I might be calculating things poorly or overlooking something, but I'd prefer to be on the safe side.