Most likely you will have to estimate expenses ect being you won't have access to the borrower to get this information up front.Bid based on worst case scenario of the 2, or most probable outcome.... 

Obviously sales price and general info on the property is easily accessible, but I always have trouble calculating monthly expenses and mortgage rates. 

I have my license for the exact reason you describe as well as MLS access for comps.

I want to take courses online and am looking for a company that offers up-to-date interactive online content and well written material.

A lawyer can access public records , If and when you get sued , and you have no insurance and the judge awards the tenant $ 1.5 million dollars .

We have MLS access to the entire state we are licensed in.

I do check online court records, verify the current landlord they list actually owns the property, and verify all other info. 

And while it may irritate some people I don't know how they can justify getting worked up since a Pro Membership buys access not an ad free experience. 

I know the US Census has their data available online, but I'm looking for an API that allows me to get recent population history for, say, the top 30 cities in the US.

What I do:- NO driveway access for garage tenant.