A more thorough explanation:

Tanquam optimum maximum is a Latin legal term that means "at its best and fullest." It was commonly used in the conveyance of an estate.

When a property was being sold or transferred, the legal documents might include the phrase "conveyed with all appurtenances, rights, and privileges, tanquam optimum maximum."

Another example might be a contract for the sale of a business, which could include a clause stating that the seller was transferring all assets and liabilities, tanquam optimum maximum.

The phrase tanquam optimum maximum was used to indicate that the property or assets being transferred were being conveyed in their best and fullest state. This meant that the buyer was getting everything that came with the property or business, including any rights, privileges, or liabilities. By using this phrase, the seller was making it clear that they were not holding anything back and that the buyer was getting the property or business in its entirety.