For example, if I need some framing, plumbing, cement work, and cabinets installed, I may get a $20k quote while if I hire these tradesmen directly and individually, it might cost me $12k total.What you get by hiring a general contractor is a manager that is supposed to keep the project going and deliver quality work on time. 

You haven't changed any of the plumbing, electrical, etc.Most States use the ad valorem system. 

Been working on it ourselves since purchase, mostly demo and plumbing/electric, but paid $14k to put a new galvalume roof on.

Since this is a bigger project than we have done before we plan on hiring a contractor to do the major work; demo, framing, electrical, plumbing, and sheet rock.

Since this is a bigger project than we have done before we plan on hiring a contractor to do the major work; demo, framing, electrical, plumbing, and sheet rock.

I am purchasing a home built in 1915 in Northern California, it is ideal location wise, size wise, looks wise, recently redone hvac, plumbing, electrical, etc.

I would say, "Hey, we can't wait to get the deal done, but have a question / concern about the plumbing in the bathroom.  

Some plumbing and electrical too.

If so, were permits pulled & were they installed by a professional5.Are any of the homes rented to students6.Is there a flat roof7.are there asbestos shinglesThe Year that the following were updated (either partially or fully) would be good to know:- Heating systems- Roof- Plumbing- electricalSome companies will not write properties with systems that have not been updated.As long as you are living there, the proper policy for a 1-4 family is a "Homeowners" policyc.

As a contractor I’d need to see foundation and plumbing option.