In general 3-5 weeks for basic beginner lap size quilt patterns of squares. Longer for more complex patterns and applique quilts. It may take years before project completion.
Quilting fees are calculated by square inch and add-on services.
Initial depost and final payment
A layer of fabric used in the quilt sandwich. The back of the finished quilt.
The middle layer of the quilt sandwich.  The loft/thickness of the quilt.
Washing a Quilt is specific. It depends on the fabrics used to make that quilt. Most cotton fabric quilts may be machine wash gental and air dry cycle.
Cotton t-shirts with no embellishments. Examples are no raised attachments of any kind, ie; no studs, no beading, no glitter, no glue and no crystals. Nothing that a needle can not sew through.
 None. There are no chemicals applied or used in the quilting process.