Seek the services of a good Architect or home designer.

A savvy architect, knowledgeable of both building and fire protection codes, with the energy to muddle through the process, could prove to be very valuable.And since the sprinkler piping was installed in the attic spaces, we used a glycol system to prevent freezing.What's driving the requirement for a second water line... is the existing line too small to handle the sprinkler demand or do they want the lines isolated?  

Item Labor + Material Cost Termite Treatment/Certification  $                              1,200.00 Roof  $                              8,000.00 Structural (Including Engineer/Architect Fees)  $                              8,000.00 Plumbing  $                              4,500.00 HVAC  $                              1,000.00 Electrical  $                              3,000.00 Carport/New Siding  $                              4,500.00 Exterior Paint and Cosmetics  $                              2,800.00 Landscaping  $                                  800.00 Demo  $                              1,500.00 Framing/Sheetrock  $                              6,500.00 Interior Paint  $                              1,000.00 Flooring  $                              4,500.00 Trim (Baseboard, Window, and Door)  $                              1,200.00 Kitchen  $                              7,500.00 Guest Bath  $                              3,000.00 Master Bath  $                              5,000.00 Light Fixtures  $                              1,200.00 Doors  $                              2,000.00 Permitting Fees  $                              2,500.00 Total  $                            69,700.00

For this one we had to work with an architect to change the roof and add some sqft to the house by turning it into a colonial.

they are harder to sell than a well-planned layout.i'm an Architect, so your options are Architect, Residential Designer, Interior Designer, maybe a Design-Build Contractor. 

not a big deal - cut out 24 inch drywall square, scrape off extra insulation (which has solidified), put drywall square back in place.p.s. i am also an architect here in FL.

This organization is where you will find retailers, attorneys, developers, contractors, engingeers, architects.

Did you use a designer/architect for the remodel or just the GC? 

I think it's very cool when I see deals in other states where you can buy, fix, and flip a house for less than $50,000 and still make a profit but that is not the LA market.In terms of offers, this property from the same architect as mine and in original 1961 condition was listed for $749,000 and had 42 offers in less than 48 hours and sold for $851,777 in 3 days https://www.redfin.com/CA/Los-Angeles/23511-Canzon...This flip property, which is similar to mine, listed for $999,000 and sold for $1,100,000 in 9 days. https://www.redfin.com/CA/Los-Angeles/22410-Hatter...Contrast those with this flip property, which is also similar to mine listed for $1,149,000.  

Or have a structural engineer or an architect go out there and say that there is nothing wrong with how you put in the window and that its plum, sealed tight and water proof and write that in their professional opinion that its okay.