The children leave for school at 8:00 AM, driven by their mother whom usually returns at 9:00 AM. Frankaye leaves for work at 9:10 AM and returns at 5:30-5:45 PM. The children return at 4:20-4:40 PM. The mother usually stays within the house, only occasionally leaving during the week.
When the kids come out to go get in the car, the vehicle will be unlocked. As the car is pulling from the driveway, use the crowbar to smash the driver side window and knock the mother unconscious. Pull the door open with the kids inside, push the mother to the passenger seat, and crash the car through the front of the house. Frankaye will be so surprised that he won't have time to call for help.
Eat Trip him with a crowbar hit to the knees. Lock him in the closet and have your way with the house.
What could go wrong? Go big or go home.