And real estate values would have plummeted because of the reduced population.  

@Eric Giovannucci I assume you are marketing in San Jose, and that may be where the bulk of your difficulty lies, but I have a few questions anyway.You say you have "scoured" CL and "exhausted" Zillow, what does this mean?

What everyone needs are products, services and policy structures designed by real estate investors, for real estate investors and one of those features is a portfolio type master policy, with no location limits, with the ability to insure multiple controlling entities and properties in any stage of renovation, in all 50 states, offering agreed value, special form coverage with theft and vandalism, the ability to actually reduce premiums incrementally by aggregating locations AND do it all on a monthly reporting basis so that you and your CPA can easily see the breakdown in coverage and premium for every location. 

They force you to constantly do specials that reduce your profit margins.

Usually notes sold in bulk cannot be cherry-picked.  

Yes, those starting out, and beyond, who are self employed look for every expenses they can, some exaggerate and that reduces your ability to borrow.

Hopefully the lots are still owned by that developer so you can buy them in bulk and achieve cheaper construction costs with economies of scale. 

If there is a slip and fall claim made by a biz customer, the tenant biz policy will defend you, greatly reducing the likelihood that your policy would pay any part of the liability claim.   

Bulk processing of owner draws, etc.

It's been producing a LOT of carbon monoxide, so much that I feel like it's a hazard to go into the basement to work on it.Does anyone have any ideas about how I can 1) reduce the amount of carbon monoxide produced or 2) better mitigate?