Inheriting tenants, blessing or a curse?

[Brandon Pelfrey]

I've noticed that when a deal is advertised the seller almost always will mention that the unit(s) is already leased out as a benefit, however in the books I've read and the podcasts I've listened to investors have stressed the importance of not inheriting tenants.

I'm curious to know what people's experiences and two bits are on this, and maybe an explanation as to why sellers boast to have fully rented out units in their listings.