A thousand things can derail a flip - changing market, underestimate expenses or overestimating income, mistakes, errors, contractor issues, permitting issues, just to name a few. 

Be prepared to explain your issues and why it did not work out.  

Building the homes on shovel ready lots won't be an issue to find lending for .

Where you can run into issues is pet urine.  

If you are working with a large PM company and you have an issue 9 times out of 10 you have to go through a hotline to call.

I have a salary and a good amount of real estate income.So far I encountered issues as my real estate NET income looks like $0 because of depreciation, and so the DTI looks inflated since I have the corresponding real estate debt.I am looking for 300k HELOC on $1.2M property with $660k mortgage at 3%. 

There are some legal concerns in certain areas, Illinois and Philadelphia for instance requires you to have a real estate license to wholesale from my understanding.The biggest issue is that most simply don't make much money wholesaling.

Rental income is typically lower than Class A, and there may be some deferred maintenance issues.

I had the same issue.

It was a mess with rules, Board problems and Building issues.