unless they are in zoning and land entitlement or land development it wouldn't be developers. if they are that's not a design build firm that's a land development company. make sure to understand how they earn their income and how they come in. how the earn their revenue will be more reflective of what their business is than what they say it is 

I have some thoughts to your question:1) Maintenance service plans (requires agreement with preferred vendor, or if you have maintenance staff, through your company)2) Landlord liability insurance through third-party insurance providers (note: this is in addition to a Dwelling Policy, which the owner should already have)3) Lawn maintenance service programs (requires agreement with a vendor for agreed-upon pricing, or if you have lawn staff to provide this service, through your company)4) Fee in lieu of security deposit (requires agreement with insurance company that provides this service)5) Increased inspection options (e.g.

Victor,Many Mortgage companies have a clause that lets them place the coverage (called Forced Place in the industry) if you do not show proof of coverage. 

Insurance and Title Shop around for home insurance companies that best suit your needs and select the insurance company that provides the amount of coverage for your home owner’s insurance policy.

I'm up in the Bangor, ME area - feel free to ever reach out - I invest - am a licensed broker - own a property management company

I have a company that I run during the week that eats on time, thats why cold calling is easier to spare an hour a day to tackle it.

So far the DSRC companies I have reached out to don't have any programs that will do something like this. 

Google RE centric lawyers, call the largest property management companies in the areas for lawyer rec's, or local investors or investment centric agents in the area to find a good one.

Most good concrete companies will have their own equipment to grade and dig the site for prep work.

We can keep adding to it depending on your needs.The areas that you mentioned are where most tech companies are situated.