There are also many others, such as hiring kids.

Personally, if I were younger and not tied to anything (kids/schools/jobs), I would house hack over and over and over. 

Kids are hard on houses. 

Current tenants had no kids.

Could be a kid/grown-up that likes to pee out the front of the seat... 

All kidding aside, your early days in real estate investing laid the foundation for your current and continual success.  

It is also a house hack, and I live upstairs with my kids and rent out the basement apartment.

Days On Market (DOM) are trending up everywhere - suggest you find out the trend for Akron.It's now Fall - there's a decent in drop in all things real estate after Labor Day when they kids go back to school.Next drop is after Halloween when consumers go into Holiday mode.How often are you dropping your asking rent?

There are 4 kids living next door and he lives with a child. 

Options are to take out a loan for the 25% and just purchase or co-sign a multifamily or just co-sign on a SFH so they can get the 5% down, no loan needed, there wouldn't be any real benefit to me and my husband as we would be assuming the debt but we would be helping our kids out.