I like it because it is free, the tenants can pay online, it is automated, etc. 

Rentometer and other online sites (Zillow, Redfin, etc.) are not accurate enough for evaluating specific properties.

@Spencer FeuerbachYou can't get the same type of commercial loans or cash-flow refinancings.

Connect with experienced real estate agents using BiggerPockets Network, local brokerages, and online reviews.

It takes alot to build up enough of a presence online via a DB site, so it works great to market to guests who have already stayed.

Your friend should have either received a statement monthly or had access to one online.

I would network with contractors out in your area, or you can find people online (VAs).

I'm looking online and see the words "you must register in advance..." 

If you're buying right then getting the loan refinanced shouldn't be an issue.

Most banks want to dispose of non-performing assets quickly, and will do so by selling at a public online auction like Auction.com, or list the property with a local Realtor on the MLS.Even if you can work your way up to the bank's decision-maker on this property, it's highly unlikely they will sell directly to you.