Code violation liens in FL are frequently discounted, each city/county has their own "formula" or procedures.

I sincerely thank you for accompanying me on this little journey, friends, for the lending of a sympathetic ear is counted among the finest things on earth. 

My question is what is the procedure to evict them as i purchase.

I have multiple sets of sheets an the check out procedures have most of the cleaning done by the renters.

Is it standard procedure for a bank to verify and clear all liens on a property before they list it REO on the MLS?

In addition to the book you've read, you may want to check out the Book on Managing Rental Properties, it may help you determine the right policies and procedures to turn that property around.

My understanding is that the property owner needs a written document about the transition happening.Is there any standard procedure (e.g.

I also remind them of the agreement and late penalty procedures that are listed in their lease.  

FUD at its finest.

There are standard procedures and traps you won't be familiar with.Also, there would be absolutely no advantage to not using one, even if you didn't need one.