Owner Financing - Ethics Question

[Chase Gibson]

I have an ethical question related to making an owner financing offer.  Here is the offer I am considering making with theoretical numbers to get everyone's feedback on:

The owner would like to sell the property for $115,000.  I am considering making an owner financing offer of $90,000 with a 10% interest rate, amortized over 10 years.  I would be agreeing to this higher interest rate in order to make the lower purchase price appear appealing.  I would then refinance to a lower interest rate in the next 6-12 months. **The owner financing agreement would not include any penalties for early payoff**.

The question: Is it unethical to make the seller accept a lower offer price, by offering a high interest rate, only to refinance quickly, unethical?

Please let me know if my question requires further explanation!