Aggressively assume $2500/mo to rent a house (forget buying). Assume part-time child care @ $900, commute @ $400, lowball utilities @ $500 (I pay more than that in Chicago), food @ $1000, car insurance for one car @ $200, and dependent health care at $150.
At $110k/yr, you're now less than $1000/mo over break-even. Lose an alternator in the car, you're in the red. Fill 3 cavities, you're in the red. Fly to Tucson for a funeral, you're in the red.
Can you do it? Yes. But I'm not going to call it easy.