On top of the local ordinances that set stringent procedural requirements for deposits, the landlord is exposed to damages of 2x the deposit and attorney fees if missing one of the many check points.

We used to have over a 30% eviction rate mainly because we were putting the wrong people in the properties and not having the right policies and procedures in place to handle those clients.Once we started being strict on who we put in our properties we went down to a less then 2% eviction rate and one of the highest rated and reviewed property management companies on Google for Houston market, this is by both Tenants as well as owners. 

In those cases, you must do what is required according to law... it may mean following abandonment procedures and/or storing tenant belongings.

Personally, I think it's more than a bit dangerous for someone unfamiliar with the legal side of contracts and real estate processes and procedures to jump in alone.

What is the Procedure to Buy  Commercial Property ?

Its almost the same procedure as doing a land subdivision, which I've also done. 

Question - Is it a normal starting procedure?

However, there is no language really on move out procedures and how the deposit should be handled. 

It's a civil matter and you have to follow legal procedure.

Ask them what are the procedures to file and go from there.