You have a renovation project?

Build 300 sq ft composite deck (with 3 sets of 2-step stairs - led lights on risers of stairs)
Railing all around the deck.
Built in kitchen (bbq, sink, etc not included - only the structure)
Pergola (I have one in mind that is reasonably simple to make out of lumber).
Stone slabs on ground (about 100 sq ft)
Composite steps around a jacuzzi with privacy fence corner.

Ensuite bathroom needs total reno: 2 sinks with vanity, soaker tub, tiled shower, toilet. We had picked much the tile already. Pocket door to bathroom may not be wide enough for tub to be brought in. Want to replace poly-b plumbing accessible because of the reno. Possible heated floor in ensuite.

I own a 45-year-old detached back split home. Currently, the ventilation of the roof is very poor and I have mold underneath the sheathing. I would need to remove all shingles, remove all plywood on the top floor and perimeter plywood on the lower floor (to see if mold present), remove old insulation or add more blown in cellulose.

I would need proper vents instated such as ventilation max brand, connect the washroom and kitchen hood fan to vent outside the roof. I would also need air baffles installed throughout the perimeter of the roof to allow fresh air intake. I would feel more confident an experienced licensed carpenter perform the plywood and roofing materials installation as per code to avoid warping and damage from high-velocity winds. I would also prefer shingles be installed and nailed for high-velocity winds. I need someone that has a proven track record with references and knowledge of building science.