30 years fixed vs. Interest only

[Puri Indah]

I have $340K left on my rental mortgage and I'm refinancing it now.

Got 2 options:

1). 30 years fixed at 3.70% or $1,565 monthly payment

OR

2). 10 years interest only at 3.65% or $1,030 monthly payment.

I have no W2, so refinancing after 10 years maybe a bit of a challenge.

What would you do?