Don't kid yourself regarding flips - if you are doing flips, you are not retired.

Families: "Spacious backyard, kids’ play area, and just minutes from the local zoo."

Times 200 board foot.  

I am grateful to you for sending me back to the white board. 

I think it will hurt you in that you'll be too forgiving of people, try to make friends with the college kids your renting to or keep bringing it up all the time. 

If you've got a family/kids then you'll need more space. 

It’s not just you, it’s across the board.

I got started in RE in my late 30’s with 3 kids.

3) If we both die, will our kids have to pay tax on this refinanced money?

Class B- midway between Class A and C, school are decent but may or may not be highly ratedClass C - lower purchase prices, schools aren't usually highly rated, higher crime, lower income tenants and homeowners, mix of well maintained and badly maintained yards, streets have run down cars, some homes with boarded up windows, mix of renovated and older homes.