As an accountant you've got a great marketable skill set to trade on.

But the important thing is that you learn and get the skills to do the same thing.

But again I believe this is not my problem and he needs to eat the loss according to the wording on the scope "completed in a skillful manner as required by the city code specifications."  

But beyond that bit of confusion to your scenario - you should absolutely not work with someone who does not match your own level of ambition / aggression / boldness, skill, etc...

Using my skills, I am able to compete with more well-funded investors who may not be interested in getting their hands dirty!

Ask yourself how you can get the most value out of that time.Improving your skills is one way. 

.), and put the rest of our money to work on opening up the floor plan and adding aesthetically pleasing features to the space.

NYC has been losing residents/jobs to FL and Cali is losing people with jobs, money and skills to less-taxing states - That will continue well after a COVID vaccine.  

This is the heart of SIlicon Valley a large revenue generator for state coffers.2) LA Times - "California population growth slowest since 1900 as residents leave, immigration decelerates".3) Biggest problem - The majority of people leaving have jobs, skills and money, leaving behind those that don't. 

Location, property aesthetics, amenities, lease terms can all dictate a great deal of fluctuation for the price.