Besides having a personal friend to mentor you, this is the next best place to learn.

Sounds like you may look at a cash-flow approach in this scenario. 

Seems like it is best to go with what is written in the will - split the estate and he gets 160k extra.

A reserve is unnecessary, but I still keep around $15,000 - $20,000 in my account.The point is, that you should sit down and assess your finances to determine what the worst-case scenario may look like, how much you would need to cover it without impacting your life, and whether you will need to build a reserve.

Go out to AirBNB and VRBO and check the area where you are looking.

Would love to connect and discuss what you're looking to do, my partner and I invest in Phoenix ourselves and can let you know what the returns typically look like.

Focus on areas like Mesa, Tempe, and Central/West Phoenix for the best balance of affordability and rental demand.

Looking forward to seeing your growth in this business!

You've gotten some good advice above but $100 even seems cheap after looking through these photos. 

Go to BUILD YOUR TEAM at the top of the screen and look for local investors or meetups in your area.