If you don't want them to maintain responsibility for maintenance, I would recommend you purchase the property from them subject-to the existing financing.

There's a pretty diverse group of properties that could be pure cash flow, some good and others not. 

Maybe there's a flat fee involved to preserve this rate.Just a thought, this maybe unorthodox as I understand that everyone's subject to a a national change in interest rates.  

I was buying the property subject to the occupancy rights of the prior owner, and would have had to either evict or negotiate with the prior owner to get her to vacate the property. it is a very small association (12 units), it is quite possible that the prior owner knows someone on the HOA board well enough to pull such a stunt."

Maybe there's a flat fee involved to preserve this rate.Just a thought, this maybe unorthodox as I understand that everyone's subject to a a national change in interest rates. 

You could just do it as a subject to deal.  

A bit off subject but might help to break the increase news.

Things like subject to or seller financing for example.

They have one that is dedicated to this subject. mobileagency dot com

Now, I assure you, I am very intelligent, dedicated on the subjects of investing, and dedicated to learning and spending time.