Pop culture has made it acceptable to vilify property owners/landlords because they are the "nemesis you see" when you cannot pay your rent. 

In my market, agents/investors/wholesalers pitching creative financing get this objection as well.They typically have a 2nd offer (usually much lower purchase price) for the owner to be able to accept now and cash out. 

It also will depend on your investor profile, depending on where you get your $ will depend on what they find acceptable.

How feasible is it to have an offer accepted utilizing seller financing for non-REO properties with the intention to flip?

Ask them for a copy of their purchase agreement and have it reviewed by attorney to see if the terms are acceptable to you.5.

@Richie Linnon if the unit needs renovation, which is likely with someone there that long, perhaps plan to give tenant 3-6 months’ notice as it will possibly be difficult and stressful for them to find something in their budget and they may need time to apply for and be accepted into assistance programs.

Is hookah generally acceptable?

Not sure what new western is, but in general you generate a target list using a tool like propstream and you call it asking if they would accept an offer on the property.

Don't accept any offers of a payment plan or other nonsense.

Accept their decision.