50+ units without being rich or partnering?

[Cee Williams]

Is it possible to acquire a 10+unit property (cash flowing) with $100k savings, a six figure salaried job, good credit but no assets nor cosigner?

I keep hearing in these BiggerPockets videos that these guys are acquiring 50+ units and saying "hey, you can do it too!" but how do you actually do this if you're not rich, don't have rich friends to partner with, etc.?

Am I missing something or are the videos misleading and not giving us the details? I've watched dozens of these videos over the years and still don't seem to get the answer how to move to the bigger properties with more doors. Anyone have any solid insight on this?