Sounds like you have thought out a lot of this, but maybe also hold a competition with a cash prize at your closest architectural and design school.Can you build it cheaper than someone like this?  

Hi Adam, we do everything in-house from the permitting & architectural to the construction itself, so that removes a few variables.

Our engineering team finishes in roughly 2-3 weeks with no major modifications required to our initial architectural plan.

It had some good architectural features that people loved, and the original plaster walls downstairs were in great condition, not even cracked.

Having worked in corporate architecture firm for 13 yrs before opening my own firm, I understand your basis @Jay Hinrichs and it's totally accurate.

Meanwhile during the eviction period, we finalized our architectural plans and started the permitting process in the county so we didn't lose much time.

I’m looking to get started at using my people and negotiation skills in the market fully, I’m hunting for properties in the UK that can be hidden gems or fixer uppers, with a keen eye for architecture and a clear understanding of value and use I’m thoroughly analysing websites and in person sites for good deals.

Could you share some tips on how to find the builders or is there any platform that I can use to reach out to multiple builders to get quote once the architectural drawings are finalized?

Likewise if there is anything I can do on the architectural side I am happy to help.

I am in North Jersey and I don't know any architects who would add the plumbing line to their architectural plans for future billing and property management.