Rent to Own - Capital Improvements During Lease to Purchase Price

[Brad Garcia]

I have been trying to research information on one question I have with the Option to purchase of a RTO:

Being the purchase price is negotiated at the beginning of the lease, how does a landlord/seller cover themselves in large improvements to the property. For example, if the roof is replaced but the purchase price stays the same, the tenant/buyer scores a sweet deal. Am I missing a clause typical for an agreement?

Just reaching out to get more educated before talking with a local real estate attorney.