Parents deed a home to children etc.

That would be lineal family like parents, grandparents, children or grandchildren. 

He said he know quite a few relatives in the same boat and their children couldn't wait for them to die, and some say that out loud to their faces.

Children's Museum

My goal is to grow this to enough cash flow that my wife doesn't have to return to work and she can stay at home to raise our children. 

NNN absolute STNL depending on tenant,location,etc. usually dictates selling cap rate.Generally gas stations, pharmacy, banks pay the most money if it is a corner site.Other option is  a 2 to 3 top strip such as Aspen Dental, T-mobile, and a Starbucks in one spot.Overland Park generally has a low end area and then on the other side a high end demographic  over 100k income on the other side.

I gross $2860 a month, and we receive $361.40 a month in public assistance for our children.

I have owned a few hundred section 8 homes.. and you can take some serious ware and tear with those.. the adult children living at home ???

I understand that students don't take care of stuff; I have two children who just assume that money grows on trees and/or falls from the sky whenever they need it.

I would try to be respectful of the fact that this is his property where he probably has many positive memories with his children.