What Happens If Maria Refuses to Pay for Unauthorized Yard Work?

Explanation:

Maria would not have to pay anything because this does not fall under the terms of a QUASI CONTRACT as she did not gain unjustified enrichment. In a QUASI contract, the main bone of contention is the ACCEPTANCE of a service but not the AGREEMENT of terms which can lead to unjust enrichment. In other words, if you ACCEPT a service but did not request it, you still have to pay. Maria in this case neither requested NOR ACCEPTED the service and so she does not have to pay.