Scott Vaughn Foster is a neighbor of the Diaz family and the father of Brett Foster in Life is Strange 2. In "Roads", Sean can find a letter sent by him to Esteban Diaz on their kitchen counter, where he complains about Esteban neglecting to build the fence he requested between their houses. The letter reads as follows:
Mr. Diaz
Your property line overhangs on mine and your children are loud and won‘t stay on their side. I have told you many times to build a legal, proper fence (no higher than six feet according to Seattle Land Use Code) between our two properties and you have not done it yet.
I know my rights as a US citizen, maybe you don't, and I expect you to also follow the rules. If you do not build a proper fence then I might take you to small claims court for damages.
Your neighbor,
Scott Vaughn Foster