Dual agency seems like a bad idea

[Alesha Irvin]

I submitted an offer Monday evening via a letter (you know the letter to convince the seller to sell to you) to the seller using the listing agent. She said Monday that she sent it to the seller and someone else was going submit an offer. Tuesday she said someone else was coming to view the property so she was waiting to submit formal documentation. Wednesday she said the ppl who came Tuesday didnt want to make an offer. The agent JUST sent over the sales contract&dual agency agreement last night. I don't feel like I'm getting the best representation.

I'm in Mississippi (MS), is it too late to go get a buyers agent? 

To make it more difficult, this property was inherited so the property disclosure is blank and its an older home. built in 1920.