One month; property manager will have to return her security deposit in one month after she moves out of the property.
More about security deposit:
Source of funds to pay tenant obligations owed to the landlord in the event of a breach of the rental or lease agreement. When a tenant fails to uphold their financial obligations under the terms of a rental or lease agreement, the landlord may be able to recover some of their financial losses from the security deposit.
If a tenant's creditworthiness affects the security deposit, the landlord must set clear and specific criteria for the various creditworthiness levels they consider when choosing tenants (such as credit scoring).
Additionally, each potential tenant who falls within each level of creditworthiness must pay the security deposit amount that has been established for that level.
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