Questions for single moms

I will be becoming a single mom soon and I need some help. My daughter is 15 months old and we live in an apartment. She goes to bed around 7:30 pm. I have a dog that needs to go out before bed about 10 pm. Can I leave her sleeping and take him out front quickly( less than 4 minutes) I would take the monitor with me. This is all new to me so I don’t know what else to do. Any help would be great.