Here are some folks to avoid completely in SL. Just judging by the way they treat and talk to people they are complete pond scum. landland Ansar or lighthouse Bruh of Lighthouse Real Estate. Yes these two folks are in the job of renting out land... evidently by treating people like trash. The link to the thread with plenty of copy/pasted discussions with these two is below.
Here is the SLU thread.
So when looking for rental land Lighthouse Real Estate is on the 'DO NOT RENT FROM LIST'.