Thanks to all for the great information here.. I'm in this exact same situation. Been in SFR for a few years and enjoy it - getting nice cash flow and some appreciation (not a ton but I'm in the midwest). I want to scale and have been very much thinking of MF investing, either trying it solo and aiming for 4-10unit type places OR investing passively in a larger deal via syndication. I think going solo gets be longer term appreciation and an asset I owe for cash flow (thinking future retirement) where the syndication route will also get me cash flow and some cash out appreciation, it seems like a shorter play (5-8years on average I think)...
I want cash flow for the future and the wealth building of appreciation, but haven't been able to pull the trigger on either side of this coin. SFR is easier for me to wrap my head around solo, and with boots on the ground I can do it all easily and remote - it's just slooooow..