REAL ESTATE COMMERCIAL REAL ESTATE RESIDENTIAL REAL ESTATE NOTES PERFORMING NOTES NON PERFORMING NOTES REI wholesale real estate discount real estate below market value houses below market value homes discounted homes for sale by owner fsbo auction properties off-market single family residence off-market multifamily units off-market commercial properties off-market real estate off-market hotels off-market strip malls off-market below market value cash deal cash buyer trading strategies stock exchanges trade cryptocurrency bitcoin mining forex smart digital investments electronic investments portfolio developers portfolio development REAL ESTATE COMMERCIAL REAL ESTATE RESIDENTIAL REAL ESTATE NOTES PERFORMING NOTES NON PERFORMING NOTES REI wholesale real estate discount real estate below market value houses below market value homes discounted homes for sale by owner fsbo auction properties off-market single family residence off-market multifamily units off-market commercial properties off-market real estate off-market hotels off-market strip malls off-market below market value cash deal cash buyer trading strategies stock exchanges trade cryptocurrency bitcoin mining forex smart digital investments electronic investments portfolio developers portfolio development