AI Lease Abstraction in CoStar Real Estate Manager turns your lease documents into draft records in Real Estate Manager. It reads even complex documents, including tables, strikeouts, and handwritten notes, then fills in key lease terms and rent schedules with every field tied back to the lease language. Your team reviews and approves everything before it goes live, so lease data is faster to produce and easier to verify.

Ask AI is an AI agent in CoStar Real Estate Manager, allowing customers to scan any document relevant to their leases, navigate document complexities, and get answers in plain language quick, with citations back to source language. CoStar’s proprietary instruction set provides answers through the lens of CoStar’s lease expertise and provides guardrails to prevent hallucinations.

CoStar builds accuracy into AI Lease Abstraction with expert-built prompts, layered automated validations, and human review. Every AI-generated field enters your system in draft and goes live only when your team approves it.

• Expert-built prompts. CoStar's in-house, onshore team of attorneys and lease abstractors builds the prompts and keeps refining them.
• Automated validations. Each lease is checked against lease logic, industry norms, and CoStar's real estate data to catch errors even experienced abstractors can miss.
• Human review. Every field links back to the original lease language, so your team can verify it quickly.
• No guessing. If the AI cannot make a confident determination, it withholds the field instead of guessing.

Yes. Ask AI in CoStar Real Estate Manager explains clauses and summarizes documents in plain language on request, so anyone on your team can understand a lease without a legal background. AI Lease Abstraction keeps the lease's own wording next to every extracted field and adds the AI's reasoning, so your team can verify each entry.

Yes! Ask AI lets you write and save your own prompts, so your team can reuse the questions it asks most often. AI Lease Abstraction leverages a standardized, validated, and rigorously tested set of proprietary prompts and extensive validations that CoStar is continuing to add to and refine.

CoStar protects your data with enterprise-grade security and controls. CoStar is not training an LLM on customer data, and customer data is never exposed to the public cloud. CoStar uses an enterprise agreement with Amazon Bedrock (AWS Bedrock) to access leading AI models while keeping your data isolated, encrypted, and secure.

No. CoStar is not training an LLM on customer data. The AI models behind CoStar Real Estate Manager's AI features do not learn from your leases, and documents you upload to Ask AI are not used to train an LLM.

Yes. Ask AI in CoStar Real Estate Manager works with leases written in any language. Your team can ask questions in the language they work in, translate clauses, and get answers the day a lease arrives, without waiting on a translation or abstraction project. Lease admins can confirm obligations and notice periods. Lease accountants can trace numbers back to the source language.

Ask AI works alongside your current abstraction process, whether an outside abstraction firm or your own team does the work. Your team can use it to quality-check abstracts they receive and understand clauses the abstract did not cover, with a citation to the lease passage behind every answer. Your abstractors stay in charge of the work. Ask AI helps them move faster and check more of it.

Ask AI runs inside CoStar Real Estate Manager, where your leases already live, and follows instructions written and tuned by CoStar's lease experts. With a general-purpose chatbot, you write the prompts, move the files, and set the data terms yourself.

• Built by lease experts. A proprietary instruction set sets the response as a lease analyst and builds in rules to keep answers concise and grounded in your documents.
• Answers you can verify. Ask AI cites the source document for each answer.
• Your documents stay with the lease. No copying contracts into another tool. Uploaded documents become an organized record. Files attached to a lease record live with that lease instead of scattered across inboxes and shared drives.
• Security – Leases uploaded to AskAI are not being used to train an LLM or exposed to the public cloud. All AI features are subject to CoStar’s existing security policies and contractual obligations

Yes. Ask AI in CoStar Real Estate Manager can help your team work through CAM reconciliations faster. Upload payment ledgers, remittance statements or other relevant documents, reference your lease for operating expenses, caps, and tenant and landlord responsibilities, and tie out the numbers with citations to source language, so you can verify, dispute, or escalate charges quickly.