An investor-owner is less likely to pay his/her condo fees, if he/she ran into financial difficulty, than an owner who makes the property his/her home.
There are also cases of investor-owner who couldn't be bothered to do repair work when his/her rented out unit is leaking into the unit below.
Vandalism may also be higher in condominium complex with high percentage of renters. Noisy tenants, illegal parking, and littering are more rampant in such condominium.