The challenge is getting to the house that doesn't look distressed. 

Probably any one of those 3 is a challenge for Section 8 recipients.add all 3 together and it will be near impossible.

Challenges?

Quote from @Noah Applegate:  This is the challenge buying off market from a wholesaler..

@Rashim Sharma your biggest challenge will actually be finding a lender.There are two banks that have offices in USA and Detroit that often will lend to Canadians buying in the USA.Can refer you to a Tax Attorney here is the US that has hundreds of Canadian clients with US properties:)

I have previously completed a fix-and-flip project, which, despite a few challenges, was successfully sold within 30 days of listing on the MLS.

NIMBY syndrome is perhaps one of the largest challenges any sober house will face. 

Challenges?

@Erica Wilson challenges with LLCs:1) Setting it up correctly.

Not to say buying an existing property doesn't have its own challenges, but development is just different.