If I contract a home and use you as my inspector, since I have never used you before and don't have a way to judge your work, If you use me as your inspector, determine upfront whether you want me to be nitpicky and create the largest report of meaningless findings to aid in getting a price negotiated lower (often due for new bills), a minimum number of findings to make it easier to purchase (often the desire expressed from real estate agents who don't want to blow up the transaction) or somewhere in between these two extremes. 

 The world's largest suppliers of gypsum are Oman, Spain, and Thailand. 

BP's search function can be likened to Google in it's infancy.

These are just very different functions.

Once you have a shortlist, sign up for an account with each one and test them extensively to see how they function.

We built out our own portal and accounting database for that functionality because we were not finding good software that could handle a higher volume of receipts AND tie it in with the rental property accounting. 

I like the functionality a lot but it seems that once a month there's a new bug to contend with that's eating into my time.

I never used it in the way you are describing but I can attest to its functionality.

Central Florida Real Estate Investor’s Association is the largest non-profit REIA group in the country.  

Maintenance/cap ex is primarily a function of unit features and tenant quality and not a function of the rent.