How do I structure this partially seller financed multifamily?

[Shaun Anderson]

Have a commercial property I am ready to offer on asap here, will be seller financed for 20% and I have no experience in this so not sure how to set up the contract for the seller portion. Details are they will hold 20% but only for 5 years max. so with that short a term do I offer interest only payments to them and then just refi and payout the balance at the end of the 5 years? Or what would other options be? I need to figure this out asap so would appreciate prompt feedback. Would prefer an email or pm, email is in my profile. 

Thanks guys!!

Shaun