I have family I can pay to do the art and faux, for the cabinets, concrete counter tops, backsplashes, trim, carpeting, windows, etc. 

If you want cheap, you cannot get cheaper than this:https://www.lowes.com/pd/Peerless-Avondale-High-Gl...You can trim this to size. 

What are my legal obligations in terms of sending him notice on not getting his deposit back either as place was not cleaned, major carpet damage done, damage done to trim, trash left etc....?

In the grand scheme of things, the sewer cost is minor compared to the other expenses that could be trimmed. 

It is heartening to see tenants make their rental their *home*, when they plant pretty flowers in the beds, flower pots on the porches, keep everything tidy and trimmed, put nice seasonal decorations up.  

The landlord under me has her occupied for $875 but hers is updated with nice laminate floors, tile in the kitchen and bath, updated counter tops by miracle method, updated appliances, nice paint on walls and trim, etc.

I could use a demo crew, handyman, painter, flooring, cabinet installer and a door and trim installer.

Hello BP,I just got a property under contract and I am going to be needing some good contractors that work in the Snohomish County, Marysville area.I could use a demo crew, handyman, painter, flooring, cabinet installer and a door and trim installer.

We didn't do much to the exterior so it would blend in and not attract the wrong attention, but the interior has inexpensive but modern finishes, brown-grey laminate throughout, light grey walls and white trim, cool pendant lighting, open floor plan, you know the template :) 

If you retain it all trim needs to be plastic and I would add a privacy film.