Eric Kandell is making his pitch to veterans. Wearing a red T-shirt, with the words “Low VA Rates” emblazoned across his chest, he looks fit and muscular, as if he had stepped off an Army base himself. In this YouTube video and others, he tells current and former service members how they can take tens of thousands of dollars in cash out of their homes. They can pay off credit cards, remodel a kitchen, install a swimming pool, or travel to Las Vegas. “Do whatever you want,” he tells them. “Imagine your home is like an ATM.”

Kandell is targeting borrowers from the U.S. Department of Veterans Affairs mortgage program. He’s the 43-year-old president of a company whose very name is a come-on: Low VA Rates LLC. It’s among the lesser-known financial outfits dominating the business of selling cash-out VA mortgage refinancing, which totaled $41 billion worth of new loans over…