Thread safe moving value between two objects

public class Foo {
  public int Amount { get; set; }
  public int MaxAmount { get; set; }
}

var foo1 = new Foo{ Amount = 75, MaxAmount = 100 };
var foo2 = new Foo{ Amount = 75, MaxAmount = 100 };

foo1.Transfer(foo2, 25); // Ok, foo2 now is full, foo1 have amount 50, foo2 amount 100
foo1.Transfer(foo2, 25); // Throw overflow exception, because 100 + 25 > 125
foo1.Transfer(foo2, 100); // Throw other exception, because now foo1 have Amount = 50