Buying someone else portfolio?

[Alex Howard]

Cincinnati local looking to increase my monthly income by purchasing buy and hold properties. I'm an engineer by day and just purchased my first house. As of now I would like to break into the multi family properties. I found a property I would like to purchase, but the thing is the man who owns this property is in declining health and is looking to get rid of 4 more properties with similar situations. Most of them are side by side duplex and 1 3 family that rent for 450-550 monthly, and are all within 10 minutes of my house. Is it unheard of to just purchase this mans portfolio?