I'm looking for a contractor in Tacoma, WA that can do a little of everything to help me do light to moderate rehabs on single family homes that I'm purchasing.

Or maybe any seasoned investor may shed light on these "transactions".I am looking forward to any other's comments on this topic and let us learn from each other.

I needed to replace a flapper and chain on one toilet, I rekeyed the locks, and I'll need one light bulb.  

I can't speak on how demo is done in certain states but from what I could tell you being a license contractor here in NY and you being in NJ which should not be much difference is do the following steps.1- have them demo and take everything plumbing and electric.2- the only scrap metal you should keep is copper, but also negotiate with the demo grew to reduce some cost if they want the copper, all other scrap metals are not word it.3- has for the electric, just have them leave you 2 plugs because that's all you need until you update all your electrical. mostly all power tools are cordless so I doubt you will blow a fuse and you don't need any light because you work will be done during the day.ALSO NOTE: do not have anybody mess/touch/remove with any electrical panel or any electrical box, leave that for a license electrician to do because thats a big safety issue that could bring a lawsuit if a non-license electrician gets any injury for attempting to do so.

But would have me treading very lightly when it comes time to make an offer.

Kitchen remodel with wood cabinets, granite, new dimming LED down-lighting, new breakfast island with glass doors, and new tile.New tile in two bedrooms and wood plank style tile in the family room.Fresh paint inside and out. 

That being the case, they have a DUTY to that seller to present the property in the best possible light to get the best possible price as quickly as possible.

For example, you don't want to be responsible for replacing light bulbs that go out.  

Did a light pre-hab on another and about to begin a major one.  

The last piece to complete the look is an awesome contemporary light fixture in the stairwell.