Start with the agreed compensation, takeover and cost provisions. A clause may identify particular installations, a calculation or payment conditions. Check whether it also covers non-renewal or early ending and which permissions have been recorded. A remaining book value or unrecovered depreciation is an economic figure; it does not alone establish a legal payment claim.
Section 1097 ABGB sets out a separate rule for statutory reimbursement of expenses. It refers to section 1036 for expense falling on the lessor and section 1037 for useful expenditure. Section 1036 concerns necessary and appropriate expense to avert imminent harm. For management of another person’s affairs for their benefit, section 1037 calls for seeking consent. Where consent is not sought and the affairs are undertaken at the acting person’s own expense, reimbursement depends on a clear and predominant benefit to the other person. Planned investment, necessary repairs and an agreed takeover therefore need to be distinguished precisely.
If repairs for which the lessor is responsible become necessary, section 1097 requires notice without delay. The provision attaches liability for damage to failing to notify. For the reimbursement claims it governs, it also requires a court claim no later than six months after return of the leased property. The statute states that the action is extinguished if this time limit is missed. Establish the claim basis and actual return date early. A separate contractual payment claim needs its own assessment of the agreement and applicable deadlines.
An organised claim schedule connects each item to its invoice, payment, reason, permission and alleged reimbursement basis. Record what will remain after the lease, its condition and the benefit said to accrue to the other party. That provides a foundation for negotiation, valuation and the decision on court enforcement.