If they are late on rent put them in rent court and never chase your rents.

Clerk of Court, most are online now.

You may also follow the Florida State Statute on abandoned property and opt to post a bond with proper notices and through the courts obtain title to the car.

Typically it's called the the clerk of court, or recorders's office....not the site that just show ownership and sales,or property taxes.  

Do I add those costs to the two properties (now 4) that I bought with the proceeds?

Just a court case. 

We were given court orders to receive these properties from a reciever free and clear of all liens not including municipal liens.

Sometimes these folks are self-serving.If you are looking for some guidance in finding properties, you may want to attend public auctions, track down sellers of expired listings, attend rent and housing court in your community.Driving the neighborhoods is a great way to find unwanted real estate.Good luck

@Linda WeygantDenver holds a class about small claims court so I'm guessing there would also be some information about the lien process in their class.

You may be confusing documents and patterns.An affidavit death of joint tenant would be recorded along with a death certificate but would not necessitate a probate to effect an insurable transfer.There are summary probates in some state that require minimum court involvement.In my state, CA, a formal probate is required when the Decedent's interest and their total gross estate exceed $150,000.