Access to credit is an important component of reserves.    

We used an environmental test to prove that the acoustic ceiling was asbestos and got quotes for mitigation as leverage to bargain down while in contract. 

You find in other areas of the country - such as NYC, where I'm from - duplexes/triplexes/quadplexes were a fundamental component of the residential development plans of the area.

You have to spend a lot on building plans, environmental reviews, architectural specifications, the whole 9 yards.

I'm assuming you all use comps to determine this, but do you use components such as average price per square foot?

I wanted to better understand what database, or underwriting software lenders use to determine if a potential property will require environmental testing.

Well, I guess this adds another component to my property research that cannot be overlooked.

@Charlie Gonzalez remember more than just the business components such as "could you connect me with a couple past clients or referrals to ask about your work", "do you have any before and after pics of your work", etc.

Given your background, you may already know how to drive traffic off targeted ads and setting up the website and payment processing is not terribly complicated, but faster tracked through off the shelf PMS systems with a direct booking website builder component.

Current floodplain setback requirements, environmental buffers and other protective regulations didn’t exist when many of our older, low-lying communities were built.The development of the storm drainage system — roadside ditches, inlets, pipes and stream systems — was haphazard in some older areas of the county, often an afterthought of the homebuilders.