Do these assumptions depend on factors external to the property (e.g. market rent growth) or do they depend on work performed by the manager (e.g. renovating units)?

They don't just provide web sites.

On the web they are asimplefund. 

Driving for Dollars, Web Leads, Referrals, Call-ins, Direct Mail, etc.).

Yes I integrate automation internal to Podio using Globiflow and also external apps using Zapier and other API resources. 

Perhaps I should ask if the R&R posted on the management companies web site is the most recent.

I have never even been to Dallas so my knowledge in the city demographics, GDP and work force is low but as I was doing my due diligence on the web, I did learn there is a lot of immigration to the Dallas area which is a plus.

A gas leak should be fixed immediately, not shut off and allowed to sit for three weeks.Here is a web site for Landlord - Tenant problems with links to attorneys, guidance, etc.Click this link for free legal advice.

Now days, being the internet age, there are several websites that sell you there programs for finding, flipping, and selling properties. some provide you will everything you need to do it all right from your livinroom and they even have a list of investors willing to buy your property right from the web as well or possibly after a personal inspection .

I would recommend that you check out web based software that is specific to operating self-storage facilities.