Owner-occupied unit (whether purchased or leased): 03, 08, 13, 18, 23, 28, 33, 38 ... that is, choose the floor with a mantissa of 3 or 8, and avoid 02, 04, 07, 09, 12.
If the company is only used for investment leasing: 05, 10, 15, 20, 25, 30, 35… that is, the mantissa is 5 or 0, 0 1, 06,1,/kloc-0.