Preheat oven to 350°F (176°C).
Prepare a baking sheet by placing the slices of one lemon in the pan along with a few sprigs of fresh thyme and oregano. Next, place a baking rack in the pan. Set aside until needed.
Using paper towels, pat the chicken dry to remove any excess moisture.
Gently lift the skin of the chicken thigh and season the meat with a pinch of Greek seasoning; repeat until all pieces are done. Turn the chicken pieces over and season the under side with a pinch of Greek seasoning; repeating until all are done.
Next, brush the skin of each chicken thigh with cooking oil. Then, generously season the skins with the remaining Greek seasoning, salt, and paprika.
Arrange the chicken thighs, skin side up, in a single layer on the rack lined cooking sheet. Transfer the pan with the chicken into a hot oven and bake for 2 hours, until the skins are crispy and the internal temperature of the chicken is 165°F.
Carefully remove the roasted chicken from the oven using an oven mit. Allow the chicken to rest for 5 minutes then transfer the tender chicken thighs to a serving plate, or serve directly from the baking sheet.
Garnish the serving plate with fresh lemon slices and sprigs of the fresh thyme and oregano, if desired.