These are all great questions and the answers are not difficult to explain. Although it is possible to structure a VA IRRRL Refinance with little or no closing costs, there will likely be some costs. The rule on the Maximum VA IRRRL Loan Amount is that as long as the new loan amount does not exceed your VA County Loan Limit or your personal
VA Maximum Eligibility, you are good to go.
The VA IRRRL Funding Fee is only .5% of your new loan amount, and can be financed into the new loan amount as well.
In most cases, it is possible to roll in all closing costs on a VA IRRRL Refinance.