Challenges could include:Having the population to make it a sustainable day-to-day venture.Finding quality staff is tough these days, don't care what you pay them.Breakdowns/serviceInclement weatherPennies on the dollar at exit If the truck does say, 1000 bucks and after labor/cost of goods the operator's left with 500 - 600, then has commissary expenses and a possible split with a partner(s)Ehhhhh...burnout.There were dozens of trucks here 5 years ago and only a handful have really survived the grind. 

SAVE money so you will have a "grabstake" to begin investing withFrom the vantage point of my 40 years involved in real estate investing, I offer these conclusions.First, for almost everyone, a true education in business, investing and or real estate is required for sustainable long term success as a real estate investor.  

My goal is to develop beautiful, affordable, sustainable houses in B neighborhoods.  

I mean, there's a whole other side of it making sure you get a property that can sustain the numbers and there are different risk factor levels of course, but for what you're asking--it's all about the numbers.

Reason why this is important is because you want to make sure that rent is sustainable.

Someone with millions of dollars in the bank can sustain a total loss on one investment without it materially changing their life for the worst.

HI BP community I have a land that I want to build several houses on it, and I am looking for a good a builder who I will going to have good sustainable long  term relationship. since I am building those houses for rent  and not my own dream house, so they must be as efficient as possible and quality for rent.  

But I am not sure they are well equipped to run a stable, sustainable turnkey real estate operation.If you are having trouble reaching Clayton, look for him on Twitter, where he seems to be posting every few hours.

And in a solid B class area that is sustainable, not some of the junk C- class areas you'll see for far cheaper.  

Outside of a few major centres (Vancouver, Toronto, MTL, Calgary, etc) you do not have density to sustain a wholesaling business (if it is your only source of income);Mortgage arrears/delinquency  - Mortgage arrears in Canada are historically far lower (<1%) than in the U.S.A. and delinquencies are less than half the amount of arrears.