@Steve Porcello congrats!
I am taking mine next Wednesday. I am in a similar quandary. The difference may be that I blew through savings in two years of wholesaling and attempts to capitalize fix and flips/condo conversions.
As an ex-GC in two states, I thought it would be a breeze to partner up with folks with a little more stomach for risk. That isn't the case, and I likely won't do my first deal until I capitalize it personally.
I have a couple property management contracts for cash flow (need 25 more to sustain), but am now in the situation to make a decision like yours.
I have a small broker willing to do a 90/10 split on anything (rentals-sales), but I'd be on my own 100% to market, but now that I'm cash poor, I'm struggling with this decision.
If I go with a KW or Coldwell, I have a shot at leads and opportunities to network with buyers by doing other folks' open houses and showings.
It could be worthwhile for you to put in the 25 hrs weekly required to get brokers license with a known brokerage. The networking alone can't hurt, and as a buy/hold strategist, having extra capital to leverage your income/debt ratio can't hurt.
My two cents. Best of luck to you on the south shore.