There's no real hard and fast way or only 1 way or doing your first 2 points. your subject line suggests you're not looking to go to a large shop like a JLL or a CBRE which honestly I don't blame you those offices are usually pretty bloated.As far as monthly costs, if you are going to individually get a costar or other such license you are probably looking at $500-$1000 a month pretty easy in overhead once you have office dues, mls dues, marketing, etc. 

If you have a landlord policy, that's an easy way to get flagged by your lender.

Any good deal is very easy to find a buyer.

You've got to stand out and a professionally designed space is an easy way to do it.

Its easy to get wrapped up in wanted to learn everything, and it ends up in people losing sight in what their original goals were from the start. 

It's not as easy as the social media gurus preach. 

It's easy to obtain, costs very little, and doesn't require extra, on-going effort to maintain.

And, more importantly, unlike many other statutes they are actually rather easy to read, comprehend, and sort through.

Additionally, it's easy for a house on one lease to get absolutely trashed by the renter.

But you typically want to be easy drive to some major metros.