How to start investing

[Rich Mix]

Hi all i am newer to biggerpockets and rusty to real estate game . I have owned multi, rehabbed and flipped , own a business . When i wanted to go all in didnt have resources flash forward and now have resources but 10 yrs from retiring . My relatives " partners" are all in on the buy and hold thought process. My question is we could start smaller and build up , let there learning curve catch up so to speak or go bigger and speedup the pace . i am not going crazy risky but would like to start at say either 3 or 4 triplexs / fourplexs or just go commercial . I am looking for cashflow but have one partner leaning heavily on appreciation like somerville ma stuff any thoughts on good strategy to approach an investing plan . Would love some clarity too so many choices thanks in advance