I used the standard Nevada Residential Lease Agreement from the Greater Las Vegas Association of Realtors.

If it is something other than that, then yes, the engagement fee is absolutely standard.

These files were standardized forms that many other lenders in the past have given me up front or not long after the initial engagement.

I believe the standard vehicle liability is $300,000 while the average settlement is less than $60,000.

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I find it odd that this isn't a more standardized practice.

Best way to understand this is research appraisal standards and means. 

Also your perspective are you an agent, pm or investor.For example in Cleveland the east side has tons of A communities by income standards but the turn times of how long a property sits on the market is atrocious.

Is this standard for most major property management companies.

I would spend money to enhance and update to current standards the search functionality and person to person tagging so it's easier to find stuff.