Thoughts: Sell Rental Property for Acquisition?

Hi all,
What are some thoughts on selling a rental property to provide some liquidity for acquisition purchase?
I will do best to keep it short - I'm a non-traditional searcher looking to go the ETA route. Rental property is financed at 3% rate (pretty low), and I cashflows a few hundred a month. But... I have about $200k in equity, meaning that after fees, I could clear ~$150k to put towards my first deal.
My thoughts are that while people say to never sell RE, I could leverage that equity into something that should produce a higher yield, with additional sweat equity. Obviously ETA is way more active than RE, but I'm looking to scale in the next few years via ETA.

No wrong answers, but a re-fi doesn't make sense with rates.