Q.Fig tree planted on a hill with established pine trees
I have a hill with established pine trees, as well as blackberry bushes and other plants. Due to construction a portion of the hill has been cleared and is ready for replanting. I would like to plant fig trees. My concern is the soil acidity – that is, the compatibility between the pines and the fig trees. The pine trees are about 20 feet from the fig locations and are on both sides.

Be sure your planting site offers sufficient soil depth and good drainage, and ensure the soil is not highly acidic, as fig trees cannot tolerate low pH (pH 6.0 to 6.5 is best).
Test the soil to be sure what you have is compatible for your new Fig Trees.
Your County Extension Office can help with a soil test.
https://www.gardeningknowhow.com/extension-search