Currently, when a tenant's personal property is left at the premises after the termination of tenancy, the landlord must provide an 18-day notice (or 15 days if personally served) to the tenant or other owner of the personal property. After the waiting period expires, if the landlord reasonably believes that the personal property is worth less than $300.00, he may dispose of it as he wishes. However, if the value of the personal property is greater than $300.00, a public sale must be noticed and held. From the proceeds of the sale the landlord may only keep allowable storage, advertising and sale costs. The remainder must be turned over to either the tenant, the owner of the personal property or, if unclaimed, the treasury of the county where the sale took place.

If a commercial landlord reasonably believes that the value of the abandoned property is the lesser of $750.00 or $1.00 per square foot of the premises rented, the landlord may, 18 days after giving the appropriate notice to the tenant by mail or 15 days after personal service, keep the property for his/her own use or dispose of it in any other manner.

To collect the money she owes you, you would have to sue her for breach of your lease/contract.

Otherwise, if you want to operate the business on your own, then you would need the consent of all owners/partners in that business in order to protect yourself.

If you decide to do neither of the above, you would have to send the owners a certified letter informing them that they have abandoned the property and that if they do not come to collect their property and they do not pay the back rent owed, you will recover the space and sell the property.