Contract Collector v5: Loan Servicing Software
Land Contract Servicing Software:

Contract Collector includes many features intended for the purpose of managing land contracts and also land development. The software can support balloon payments, interest only contracts, negative amortizations, short balloons, and extremely long amortizations.
Payment Frequency: Weekly, bi-weekly, semi-monthly, monthly, bi-monthly, quarterly, semiannual & annual payments.
Payment Application: Full control over how payments are applied. Apply extra payment amounts to future payments or to reducing principal. Accepts principal only payments as well. Disburse payment amount between various charges including: late fees, escrow charges, and principal/ interest.