Heat the oil in a Dutch oven over medium-high heat and cook the chicken with 1 teaspoon salt for 6 to 8 minutes until it reaches 165°F; transfer it to a plate.
Cook the onion for 5 minutes, then stir in the garlic and cumin for 30 seconds.
Pour in the lager and simmer for 5 minutes, scraping the bottom of the pot.
Mash 1 cup beans and add them with the whole beans, green chiles, broth, corn and remaining salt; simmer for 15 minutes.
Return the chicken for 3 minutes and finish with lime juice off the heat.