To answer the scheduling question, here is the graphic I use in the BiggerPockets flipping book to indicate the order of scheduling for a typical renovation project -- the book goes into a lot of detail on the scope of each task, the dependencies between them and the completion time frames you should expect, but this should give you an idea of the task order (click to ENLARGE):

If the walls are masonry,  I would look to either tear out the old, rotted floor joists and install new ones I the existing pockets,  or if you want to sister the joists,  chip out the brick to enlarge the pockets to accommodate the sister joists.Or is that a rotten oak log the joists are notched into? 

We enlarged the kitchen and blew the bathroom out!!!

When you have an elevator you enlarge the buyer pool to a degree.

And you'll have new cracks in unexpected places, old cracks that will not close, but instead enlarge.

(You should be able to click the image to enlarge it.

And you'll have new cracks in unexpected places, old cracks that will not close, but instead enlarge.

FYI it actually had two bedrooms crammed into the space, we demo'd one of them to enlarge the living area, enlarged the bathroom and are putting in a new garden door and covered patio off the living room.Kitchen is about about 9 x 12, L-shaped with peninsula.  

I'd be willing to even assist other professionals enlarge their portfolios in my market area.

We are looking for a contractor to do a small 200-400 sf addition in Kaneohe to enclose laundry room and enlarge and renovate master bedroom and bathroom.