I want to add an L of windows in my kitchen. Ideally, they would just blend together like 1 big L shape rather than there being wall at the corner junction. One of the potential contractors is saying that the windows would need to be kept at least 6" from the corner which doesn't give the fluid L look I was going for.

Anyone know enough about construction to explain why the 6" or better yet a way to do it so the windows are maybe 3" from the corner?

Here is my inspiration picture.