How to approach a seller, when only wanting togo sub-to

[Ed O.]

Greetings! I wish I found this place 8 years ago! Tons of knowledgeable people and information flowing freely!

Anyways:
I'm looking to acquire some sfrs for rentals and possibly lease-options. I'm curious to find the best way to approach sellers when the only way I'll be able to acquire the property is via Sub-to or owner financing.
At this point, there's no way I'll have cash or will be able to qualify conventionally (too many properties for fannie / freddie limit).
What's the best way to go into the conversation, especially without putting the seller off by bringing up the subject?
thanks for any advice and insights!