Buying with tenants in place in New Jersey

[Kilby Browne]

I am looking at making an offer on a small multi family in New Jersey. The listing agent wants me to acknowledge on the offer that there are tenants in place. I don't  want the tenants because they are paying under market value and my numbers would not work. The agent said the tenants are month to month, but I am concerned. 

Any thoughts on how to handle this matter?