Will a consent foreclosure prohibit / negatively affect filing for chapter 7?

I'm not sure what you are asking. First, there is no such thing as a "consent foreclosure" but if you mean a "deed in lieu" of foreclosure, and there is not a second mortgage, then you wouldn't need to file bankruptcy unless you need it for other debt such as credit card or medical debt. There is a procedure for a "consent judgment" but that is unlikely to be used in a foreclosure proceeding. A deed in lieu of foreclosure is generally considered to have somewhat less of a negative impact on your credit scores than a bankruptcy, however, THAT SHOULD NEVER be the determining factor in how to proceed.