My honest advise related to renting a house / apartment out :
1) The risk involved. If you buy a R10 000 000 house and want to rent it out, think again please.
2) See that as your OWN business! Not everyone is made to fix stuff, do credit checks, admin (but its actually very simple). If you put time in, you will be rewarded.
3) When you make adds and get interest, you can quickly see in 5 min who is serious or not. If you ask for credit check information or bank statements, they quickly get silent or just not reply
4) Any RENTAL AGENT is just a postbox. If a geyser burst, they will call you to sort it out. Why pay someone 10% who calls you if something is wrong. EVEN WORSE, if you get an agent and the tenant don't pay, AGAIN, they will just call you and STILL BILL YOU! (That why point 2 is very serious, see it as YOUR business.
5) Give the apartment over as in WOULD you rent it ? Take photo's, make video's. And let them SIGN a SNAGLIST 14 days after moving in. What's wrong you get repaired to keep your side clean. When they move out and the walls are yellow, paint it out, and bill your time, petrol, labor and paint. Its as simple as that.
6) Most people always just think negative. It isn't. If you do your admin and screening correct, you might be unlucky to get 1 out of a 1000 tenants who will take you for a ride. But as I said in point 3, you call the firm they work for, confirm who they are. You dig as much information out of them (but only once, to approve them). If you do a quick 5 min check, you might think you are "ok", but only time will tell.
7) Related to interest rates that increase, make sure you can handle any BOND that would climb now 5% (no jokes). Reading how owners complain, sadly its life! If you don't adapt you will sit and cry night after night after night.
8) Its a fun experience playing monopoly in the real word. It have its pro's and con's, but you will be rewarded if you take it serious and make time. If you pay an agent to keep you posted (on things that is your job, its your call to spend 10% of rental income on something that would come any way your way).
9) Related to the question on rental insurance, ANY insurance has become the norm and such a money industry, its actually funny. They will always point the T's and C's or the super fine print you missed. Rather take control, screen possible tenants who you might like, and you have 1% doubt, walk away! That one motto I have in life, its 100% right or 0% (and walk away).
Just some points I take to heart when becoming a landlord, and I till today promise, if you take something serious, its your money, its your building / apartment, you will be rewarded!