When analyzing a park - how do you include seller financed homes?

[Brandon Turner]

Hey folks - 

So, I'm looking at a park that has a dozen "seller financed  homes" in the park. These tenants are paying around 200 a month for the seller-financed part of the loan. I'm unsure, as of now, the terms on these loans. 

Any tips on how to analyze with this income? Do I leave it out, since it's not really income for long? Or do I just add in the total note values like they are an asset I'm buying? 

Any tips? 

Thanks!