There are so many great resources on this site, so keep learning:Attend local REIA meetings and connect with like-minded investors: http://www.biggerpockets.com/meetRead the Beginner’s Guide: http://www.biggerpockets.com/real-estate-investingListen to the BP Podcasts: http://www.biggerpockets.com/renewsblog/category/podcast/

I’ve read tons of books and have finally got my foot in the door.

Could you please share a template so I can use it as guide.

Here is the link to the credit underwriting guide from the VA https://www.benefits.va.gov/WARMS/docs/admin26/pam...I don't see a specific FICO score minimum in there. 

As always, state laws will be the best guide.

“The new loan amount can be no more than the actual documented amount of the borrower's initial investment in purchasing the property plus the financing of closing costs, prepaid fees, and points on the new mortgage loan (subject to the maximum LTV, CLTV, and HCLTV ratios for the cash-out transaction based on the current appraised value).”https://www.fanniemae.com/content/guide/selling/b2/1.2/03.htmlI would like to get as much out as possible and move to the need deal.

I mean there are also numberous repair cost books called construction estimating books but who in the world understands them and how accurate would they be in any particular case?

Not exactly sure where you're at in your journey, but some things I would recommend are:Read Brandon Turner's book on Rental Property Investing https://www.biggerpockets.com/store/rental-investing-digitalRead David Greene's book on long distance investing https://www.biggerpockets.com/store/long-distance-real-estate-investing-ebookListen to the BP Real Estate podcast https://www.biggerpockets.com/podcastListen to the BP money podcast https://www.biggerpockets.com/moneyshowAttend your local REIA meetings to networkStart analyzing deals to get practice running the numbersKeep engaging on the BP forums and make connections!

Are there any books you would recommend?

I have read several of the books, listened to many podcasts, and read a lot of the forum threads.