Asumming loans or structuring under a rent to own?

[Rory Compton]

This is my first deal outside of a house that I rent that I lived in for 5 years first, so please forgive my lack of knowledge.  Also I apologize for not using the search function more comprehensively, but I am limited on time.

From what I have gathered, loans can no longer be assumed under the table because of Dodd Frank?  If so, can I refi into my name with seller approval and give a cash out or have the seller refi and take over under a rent to own type structure also with a cash out?  I need the property to rent at the current equity amount to work.