Competent appraisers will not work for AMCs so mortgage-related appraisers sent by banks are often bottom of the barrel.That said, I often have to ask why people assume brokers comps are correct?

And I tell them make sure the rent money is in the bank on the first.Another tenant, slightly better qualifications, missed one electronic payment recently, but tells me he had to help a relative out, and spend $29K.

Just be aware that these costs are very general and are to be used as a rough guide since his costs in his area with his guys will not automatically relate to what you would pay in your area. 

I haven't seen a great data source for rental growth for single family homes. 

Just going off the data you have given, the park is running a 91% expense ratio.

With that being said, I've had real estate related ideas in the back of my head for quite some time now.   

Four Things to Know about Taxes and Starting a BusinessNew business owners have tax-related things to do before launching their companies.

During the webinar Cochran showed a subpoena that had apparently been sent to his mother in 2012 and that related back to Cochran's real estate activities through 2010.

We've been utilizing biggerpockets' tools and have built our own excel spreadsheet to quickly analyze data-dump from mls reports. 

If you can find good deal, that would be awesome.Why would the seller give you a good deal, instead of selling to his or her relatives or friends?