closing first property with tenants already in place - now what?

[Jack Johnson]

all the properties I have closed in the past where always vacant - i bought, rented and started with new tenants, etc

I'm closing a duplex tomorrow - with tenants already in place - suggestions on how to make transition set expectations, etc 

best way to make introductions, review lease, ? sign new lease, how to set expectations, when to raise rents - etc ? 

many thanks 

jack