When doing a Lease Option / Lease Purchase it's best to hire a real estate lawyer to draw the documents and explain your rights, including those of possession and default consequences. The property might be encumbered by underlying loans that contain alienation clauses, giving the lender the right to accelerate the loans upon sale.

Sometimes sellers give the option money to their real estate agent as full payment of commission. Agents are not always involved in the exercise of lease options or fulfillment of lease purchase agreements and, even if you have retained real estate agent representation, you still need a real estate lawyer. Agents are not lawyers and cannot give legal advice.

In the event of a lease purchase, obtain all the disclosures and do your due diligence just like you would on a regular sale. This means:

Get a home inspection.
Examine the title policy.
Obtain an appraisal.
Read the seller disclosures.

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