VA loans and Foreclosures?

[James Fox]

Good Morning BP,

I am new to Bigger Pockets (first month newbie) and in my "baby steps" stage of learning as much as I can about various RE investing techniques and tactics before I take my first plunge. As I head toward winding down my military career (15 years active so far) and begin setting plans for the future after retirement, I feel as though I am coming to the game late, so please forgive any "silly" questions that might have been addressed in previous forums. 

We have never used my VA loan and are looking to use it on our next move (in 18 months) for our primary residence. As I'm learning about VA loan benefits, I have seen some conflicting information. We are wanting to get into something 10-20% below market value + make some improvements (A la Brandon Turner's advice in his latest book). My question is - Can I use VA loan to buy a Foreclosure? Is there a requirement/limit on how much "fixing, i.e. improvements" allowed? Thanks-