You say you are with your brother in-law, but both hunting "alone". If that's the case, I suggest that you both take stands for the first few hours, but coordinate a strategy for a small 2-man push for later in the day.

In a very thick overgrown field, deer will often just avoid a man moving very slowly. They won't necessarily leave the cover. I'd have one guy sit on a likely escape trail, and the other move very slowly around the perimeter of the heavy cover. If nothing shows after the first pass, take another pass, this time in a tighter cirlce around the stander, and so on until the "driver" is within sight of the stander. With this tactic, both men are likely to get a shot at a walking deer.

Then, if nothing shows, find a good spot and sit until dark.