To be a big time wholesaler you do need to be vertically integrated and you need significant capital for lead gen..

Now insert your new key and turn back to the vertical position.

After working in construction for a year, I decided to attempt to create equity through vertical integration.

Make sure these companies are vertically integrated and have PM well under control.

Some others that I don't know the legality of in any given area but that you might look into would be parking spaces or urban farming/ gardening, in non-covid times you might be able to lease the land in exchange for a share of the profits from whatever crops are grown and sold at a farmers market.

They will move to garden style apartments in the suburbs or ADU's in the city.