He walked away from his business letting his best friend take it over.  

The future buyer might have their own engineer walk when you flip it but if it's done right you'll be fine

With all six lots in walking distance of the Eisenhower Avenue Metro, the major government employers listed above, and Caryle Crossings, as well as The Foundry (another mixed-use development), the Alexandria Planning Development Division Chief Rob Kerns, described these 6 lot developments as the "next logical step" in the cities effort to further densify the area.

It’s a good move to have a contractor walk through before making an offer to estimate costs and timeline. 

The home also had a small lien.Listened, offered a solution and everyone walked away happy.Date: 02/06/2018

We walked the apartment and found some gaps behind the bath vanity (that may have bringing dampness from crawlspace). 

They would help walk you through chargebacks.

Maybe you walk away with $100K in 20 years but what would an index fund or Muni bond both of which are passive and likely safer net you in 20 years?

JK Real Estate Partners has a really good course on this that explains everything and walks you through property entity set up, backed by a lawyer that specializes in helping Canadians.

We walked away from a new build last fall because we could already see issues and the sellers ended up getting us a pre-inspection report that said there were serious issues with drainage and foundation.