How to be an estate/lettings agent

1. Despise humanity.
2. Buy a suit.

Im not sure what else one would need. I think that might be it.

Oh, the inability to know where to put an apostrophe in a written description coupled with the simultaneous ability to describe a tupperware tub of lumpy snake-vomit in a cupboard in an abbatoir as spacious, unique furnished property in ideal location with period features great views viewing essential! is also a boon.

But mainly being twat in a suit will get you by, I think.