Attend your local REI meetups to build up a strong network and feel free to reach out and connect with everyone in the community.

I'm obviously bias because I'm in the Chicago area, but I have partners constantly buying properties for ~$150k + ~$60k in Rehab and then ARV of $300k doing Cash Out Refi's based on Long Term Rentals or AirBNB, Flipping the properties, or Wholesaling the deals. 

Duplexes, triplexes, and larger apartment buildings are popular choices, especially in areas with strong rental demand.

Based on what you are looking to do, this might make sense.

We also see a lot of instances where newer investors are unaware of what quality and details need to be achieved (or not achieved) based on their desired exit strategy.

But if you really want to focus on passively investing in real estate syndications, I would strongly recommend joining a Community. 

There are so many caveats and unknowns here that this is just an attempt at an idea...Option 1, the four grandchildren living in the property buy out the other two:-Estimate your PITI payments based on the expected payout to the 2 grandchildren being bought out.

As California investors, we sought a more passive approach for our later years, and SDIRA's new construction properties in strong markets met our criteria.

The mortgage payment is based on the interest rate and term. 

Clark, 36 A.2d 631, 632 (N.H. 1944)So based on those quotes, your scenario @Collin H. wouldn't constitute gross negligence.