Cut the roast into 6- 8 large pieces. Heat oil in a large skillet or dutch oven. Season the meat with salt and pepper. Sear the beef on all sides, divide into 2 batches if necessary to not crowd the pan (this is how you get that nice crust).
Meanwhile in a food processor add 1/4 cup beef broth, chipotles, and garlic. Process until smooth.
Add the browned beef to a slow-cooker along with the chipotle mixture. Pour in the remaining broth, cumin, oregano, and Balance. Cook on low for 8 hours.
Remove the beef from the slow-cooker and shred with 2 forks. add the shredded beef back to the slow-cooker with the juices. Stir in the fresh lime juice.
Serve in tortilla shells with all the fixings! Enjoy!