I’ve heard attorneys who specialize in self directed retirement accounts say you can put the lease agreement together and even show the property to prospective tenants andof course you could manage it.  

I read this quite often: 'should I self-manage my property or hire a professional property manager?'

You will pay ordinary taxes and also self-employment taxes.

One of the key features of the FHA loan was the Self-Sufficiency Test, which helped keep prices in check.

All have expresses that they are very comfortable with the process. 

Hell it could be as simple as parking, laundry and bathroom services for truckers with some self storage....  

As for vTiger, I believe it’s free version is self-hosted, which means you need to have your own web hosting infrastructure and domain setup to take advantage of their open source option

You may want to check out soe of the legal self help books by NOLO Press.

Lots of properties that are 2nd homes, self-managed by owners who are just hoping to make a few extra bucks, not running a serious business. 

Note self...