This problem we are solving at Bliss: founderbliss.com
We give real-time visibility into the code for business-side founders so you don't waste time & money on engineering resources that aren't going to work out.
Our tool provides automated audits to review code quality, code value, and technical debt -- all easily digestible for the non-technical entrepreneur.
Also, we have a blog about best practices for non-technical entrepreneurs: http://blog.founderbliss.com/
It's a new blog (last week) and our second topic covered 'code tests' as a simple step for a non-techie to evaluate a potential CTO/tech lead.
Feel free to message me if you need additional help.