It's actually ANCIENT technology where an image, "shot over black" (no background) and projected on a nearly transparent screen appears to be floating in space in 3-d.

Ancient Chinese secret.

We immediately made improvements such as adding fencing to tenants' "yard" areas, and replacing the ancient washer and dryer in the laundry and doing some general clean up and maintenance.

My experience the past 20 years since moving back to the USA from Greece has been in Finance. 

I see houses sell with ancient fixtures.  

That said, wasn't there some ancient wise man that said something about the more mistakes you make the more wise you are?

Believe it or not, pre-2008-crash, every house in Greece that was sold had cash pass under the table.

there are tons of turn key companies out there.just google in the state your interested in1177-10-818-1001115 ADELMAN DR8912320061009-1300 - DOT POS UNK - $30,800** BID WITH CAUTION **PRIOR UNRELEASED DOT RECORDED 11-03-2004, WILL ATTEMPT INDEMNITY $217,500DOT IN FIRST POSTION RECORDED 10-09-2006 $247,2002138-09-713-0347625 ADVANTAGE CT8912920071102-01702 - 1ST DOT - $258,205** UNABLE TO INSURE **ACTIVE BANKRUPTCY CASE - NO ORDER LIFTING STAY ENTERED3178-16-412-00962 ANCIENT HILLS LN8907420060321-3223 - 1ST DOT - $480,853** BID WITH CAUTION **LIS PENDENS RECORDED 04-05-20194179-20-812-089688 ANNE LN8901520060721-542 - 1ST DOT - $128,000HOA - (ASSESSMENTS) RECORDED 03-12-2019 $1,6405177-16-610-009360 AUTUMN HUE AVE8912320070822-4937 - 1ST DOT - $564,350** UNABLE TO INSURE **PROPERTY SOLD.

Greece’s public debt load, even after the restructuring of Greek debt a few years ago, has swelled to 175% of GDP.

But, even if it's an ancient code that says to send it certified, I'd also just send it priority mail with delivery confirmation.