This management firm has a strong reputation, and I spoke with not only the firm itself at length, but also two of their customers (one of the two references was not provided by the firm).

A large firm?

My firm is in the testing phase of a new SAAS platform for investors in residential, land and commercial properties.The software scours properties on the market and off the market by zip code and based on specific criteria it will alert users with the address, mortgage info and full contact info including email addresses for onsite and absentee owners.Would anyone use this?

It was explained above however ,as far as who perform them, I will say you can find many accountants who specialize in real estate that will but make sure they are qualified and work with an engineering firm to provide you a quality report.

Be firm. 

Be fair on your part, but be firm with the tenant that tried to throw you under the bus so they could buy a home.

I will be looking to use a PM, as I add more rentals due to me working 50 hrs a week.With that said, can anyone recommend a good PM firm in the Sacramento area?

For a portfolio of rental homes I borrowed over $4 million from a private equity firm that specializes in lending to owners of portfolios.  

Law firms frequently hold funds from different clients in a single "trust" account.  

When a seller is motivated, and their need is firmly established, as a wise and creative investor, you can put all of the elements of the deal together.