So if you're looking to get into multifamily, I would try to identify the people in your area who owns hundreds of units and provide them value in the form of property management, joining their brokerage and bringing them commissions, walking properties for them, starting a meetup to increase their brand.

U know a good agent will do pretty much all that in the price of the commission the seller pays.

I'd be curious to hear from the pros on how this law will affect this group of agents and how folks like me, who will be using a flat-fee agency, should handle working with them when it comes to commissions?

The legal fee is nominal given I could get house prices for significantly less when we negotiated the listing agent's commission on houses.

Same when I buy, I get commission.

It’s possible I did a poor job of explaining this, this isn’t really a service for investors per se’ in fact I would probably in an ideal enjoy doing this more for primary home buyers, this to me is an alternative to the 2.5% commission model, you cut out the most time consuming and often in my opinion least valuable part of the job which is showing people around and opening cabinets and seeing if they are soft close or not lol (I presume in this new world there will be more open house, more showings by listing agents, possibly more services that allow buyers to show themselves houses like the Redfin does on some of its listing) because of that plus the guarantee of getting at least something for your time allows you to theoretically charge much less while still providing the important parts of the job, like you should consider this area, let’s go over this home inspection repost, here’s how we should craft an offer etc, even spending time explaining rent vs buy calculation and personal finance etc, plus the being able to be paid regardless of your advice, I’ve had countless clients who has just a myriad of bad ideas I’ve talked out of, but of course you don’t get paid for that in this commission structure.

What would be a fair commission, would a fixed rate be better?

If you feel you have a strong case, file a complaint with the real estate commission.

Bad agents won't.Example; a listing agreement calls for a 6% brokerage commission. 

One part I am looking at is flipping one house a year, netting $14,000 in broker commissions and about $18,000 in profits after all expenses, for retirement.