The wooden cabinet holding up the sink begins to rot.

for example when changing cabinets, addressing trim, door pulls. hot water tank replacement: place a pan under it.  

For example, laminate and tape it to the back of each bedroom door, inside the upper cabinet closest to the refrigerator, in the laundry room, etc.Finally, inspect and enforce.

New electrical and plumbing were needed after doing the demo of the kitchen and bathroomsOn the buying materials, I did buy the kitchen cabinets (in-stock), countertops, bathroom vanities, tile and plumbing and light fixtures (not the recessed lights which the contractor bought).

Most people would spend a minimum of $25 PSF for a light remodel- replace kit cabinets/counters, floor, paint.

I had mold in some cabinets below my sink and it ended up being significantly cheaper to just replace all of the cabinets.

Updated flooring, changed cabinet hardware, updated thermostat.

Are floors typically installed before or after the cabinets are put in?

There is another family I know who moved from Oregon but they have their own cabinet business. 

The kitchen cabinets, they are two different colors.