Potential Tenant with a Question for Property Owners

[Lanita Woods]

I was interested in some advice or suggestions on a property I was interested in. To get to the point, I viewed a home for rent that me and family really liked and I wanted to ask the owners if they would be willing to come down on the price. So I informed the property manager of my offer and they told me they would get back with me. It has been 3 days (maybe that's not long, perhaps I just really want it) and still no contact, I called but they said they haven't been able to get in contact with them.

My question is, if I have the property owners contact information, will it be unwise or unethical for me to contact them myself?