If you go to "Resources" (see brown banner at the top) you'll find "Sawmill Services." Look to see which have portable mill services near you or are willing to haul the pieces to their mill. Two things to consider- the tree is "urban" wood, so likely to have nails or other bits of metal in it and therefore, many millers will not touch it and if they do will charge extra if they run into a nail and dull or break a blade. Also, anything you cut will be green/wet and may take a year or more to air dry if stacked, stickered, and covered properly. It will take a lot less time to dry in a kiln but now you are really talking expenses.