I would like to buy real estate to support my wife in case something happens to me and also to teach my children about real estate since I have eight children.

A quick note about above, I was talking about the leader of the hillbilly terrorist group, not the now dead guy who used foster children as free slave labour to work his ranch and make it profitable, or was that another guy who abused foster children that was a member of this group?

They're small and the spiral stair case makes it very hard to move any furniture in.

I have two children and love where I live and work!

A home with a  mother in law setup has many advantages - younger people don't mind sharing space and renting rooms out so it could could work for younger millennials - but more to the point - you have a lot of families where the parents are moving into their children's homes to be closer to family and to be taken care of - on the other side of that you have record number of young people moving back into their parents home - so a SFR with an in-law unit built into it should prove attractive to a wide range of buyers.

Wait a few years when those folks start having children and b-line for Carmel and Fishers.

I currently work a full time job as does my husband and have three children.

If there is a room that doesn't need much work, or could be put off until the end, then you would at least have a place to go and get away from the mess.If you have small children, it's even more difficult. 

The Obit will give surviving children and what town they live in. 

By the time I wised up to the benefits of real estate investing I already had a pregnant wife and two children so I was more limited on the house hacking option than you are.Best of luck to you!