Working method for investing in real estates (1), as a result, characterised that the real estates (1) are sold by a salesman (2) to several purchasers (3a-3d), where the purchasers (3a-3d) invest each a sum (4) in the real estates (1) so that them jointly, in onverdeeldheidonverdeeldheid and each for a certain percentage in proportion with their respective invested sum (4) owner of the real estates (1) becomes, where the purchasers (3a-3d) oblige a number of year in onverdeeldheidonverdeeldheid remain and where become there during these years for each purchaser (3a-3d) a turnover (7) assuredly that are obtained rental incomes (6) from the rent of the real estates (1).