I already have an eviction attorney for $300 all in....he requires the lease, notice, etc...does that seem like a good price (I am not sure if includes court fee)?

Set up costs depend upon who you use to set it up and whether or not you use a business as a registered agent, or if you know an individual who can act as the resident agent and agree to let you use their name and address for any court summons that needs to come to you.

Call a real lawyer that gives you real facts that will hold up in a court of law.

Did a past landlord have damages that are documented in a court case? 

She has to remove the $40,000 from her IRA and declare it as income.

If you do not live in Nevada or do business in Nevada or have another connection to the state then any attorney can easily prove in court that you only set this up for protection that you will not qualify for.

My idea is to combine all court house cases daily  (divorce, probate, eviction, liens ) and drive them to a converting website or answering service.Its a way to improve "list" problems by updating/housing/combining historical pain points and current problems we can convert list into real time data. 

Is there any other option other than having this expunge through the courts?

The 2016 Florida Statutes Title XLREAL AND PERSONAL PROPERTY Chapter 689 CONVEYANCES OF LAND AND DECLARATIONS OF TRUST View Entire Chapter 689.15 Estates by survivorship.

If you are happy with the tenants they found for you and you are moving forward with them then if you go to court all the court would award you is the damages.