Other times we have hired and paid for the movers (careful here too). 

. - You could own and operate those yourself and just hire great management or bring in a management company. 

I am thinking of creating a DBA with a virtual business address through iPostal1.

Most of the time you'll be fine, but when something bad eventually happens (with enough exposure over time, you are virtually guaranteed to have something bad happen), the outcome is likely to be catastrophic. 

Dude told me he had bad tenants and he wanted to hire us to takeover management and negotiate a cash for keys settlement with current tenants, then get him some new ones.

I did house hacking and still doing it and to start I hired a property manager to both learn from and to allow me to continue working full time until I was able to take over managing the property. 

Is it easy to creat an LLC on your own, or would it be wiser to hire someone to assist me?

Until then. it's virtual money. 

Quartz is virtually indestructible, and you will get that "it" factor in an STR that you need.

If you're looking to make it easier on yourself, consider hiring a property manager.