My sister in law just started one to avoid day care costs for her 3 children.

Ask her if she has children or family that could help.

(ESA Cats never eat neighborhood children!)

Tenants aren't our children.

Add to that that (usually) you basically have a group of "children" or at best "new adults" that really don't "get" responsibility.

Took a job teaching engineers at a ship builder in South Korea and now I teach English independently to children and adults in the same area.  

The Mexican fisherman said, “I sleep late, fish a little, play with my children, take siestas with my wife, Maria, stroll into the village each evening where I sip wine, and play guitar with my amigos.

You should discuss children in the future and how it will affect your $1M goal.Then ask him this exact question.

Even though the properties are under the LLC and the management of them is under an S Corp, will my children be charged full capital gains tax if I pass away?

Pennsylvania is the second-oldest state in America, packed full of senior citizens who can't do any of their own work, with absentee children who will not come home to work on their parents' house, and fewer than average young people and immigrants, especially somewhat reliable young people and immigrants, available or willing to work cheaply in the gig economy.