SouthernMdRocks
R.I.P. Bobo, We miss you!
If I did not work during the day and had a fenced in yard I would love to take care of pets. We live on 20acres and very far away from any main roads, but I would feel better with a fence around the yard ( some dogs don't come when you call them ). My yellow girl is really good about coming when we call her and we never leave her alone unless she is on the lead. She has plenty of room on the lead/dog house/fresh water/we put an old sleeping bag in the dog house for the winter months. But we never leave her out there when it is cold (she is inside on days like today) She loves the outside but its just too cold today. I would like to build a kennel one day and do foster care, but too many folks think it is wrong for my dog to be on a lead for any amount of time and might not allow me to foster dogs.
I use invisible fence and I know you can buy the stuff much cheaper from like a Petco and maybe even Tractor supply. Easy to install and will keep them within your defined area. I need to get our newest foster dog use to it, until then she must be walked on a leash outside. BTW, I see nothing wrong with your pup being on a lead for short periods throughout the day.