For example, providing the clerk and recorder's office a certified copy of the deceased birth certificate? 

You can find multiple examples here on Biggerpockets.  

In Arizona, for example, you can get a loan for a 4-unit property up to $521,260.  

For example, you set up key word alerts. http://www.biggerpockets.com/alerts

I don't pay attention to conversion rate or how many clicks it takes because when it is costing me about $10 a month for 100,000 views (roughly) it doesnt even matter.I found it best when you make your ads in tune with the website more than pitching your offer.For random example just off the top of my head...

Example: Best Heating and Air Company, Big Green Landscaping Service, Sammy's Snow Removal.

I've found some investor-funding companies that offer, for example, "75% LTV lending with no down payment."  

The city is taking action for "lateral" earthquakes, an example for this is on concrete basements, these doesn't apply, because there are shear walls below the building to hold its weight. 

For example, there is already a ridiculous amount of competition in the real estate market - if I was still in it, why would I want to invite more people in to compete with me?

In your example, a $5000 +/- on expenses can swing the cap rate from 10.5 to 12% may not seem like much but depending on your debt cost could be significant.Lastly, some items should be easy to estimate (taxes, insurance, etc..)