You must have missed this recent thread in which we beat this topic to death over 6 colorful pages: https://www.biggerpockets.com/forums/24/topics/1143427-gener...It really depends on the type of project, scope of work, and whether you're dealing with a real professional GC or more of a handyman/laborer type situation.

This vapor barrier may be a dark blue or black color, and should stretch along the entire underside of the manufactured home.Inspect the vapor barrier to be sure that there are no signs of sagging, rips, or delamination.

Painted exterior new color.

But as of recent stability and peace has returned but I can-not say whether the future is bright or much darkness is on the horizon.

The last time we failed a section 8 inspection was approximately 30 properties ago and then passed our second inspection on that failed one with flying colors a few weeks later.

Last comment I will add is when a deal goes bad, how it is handled by the sponsor will show their true colors. 

People come for fall break and fall colors.  

That company supports foreclose bidders they produce a document daily on all the sales with same info I mentioned above and color coded certain props with extra caution Red or Green for ready to go bid with confidence. although this created uber competition. 

Color of windows won't increase/decrease rent 

For example if we are remodeling for a rental we paint all interiors one color...white.