richms:
The reason the recommendations are all professional grade gear is because you are looking for a professional grade solution.
You will still be getting the visit if your guests in the rental start downloading CP or sending threats to people even with all the vlans and blocks with inter-vlan communication.
If you want a cheap and fast temporary solution perhaps find a wifi router with a guest network mode? However I agree that multi VLANS feature are not a feature that falls into the low tech user bucket.
