Is it permissible for the authorized marriage official to take money from the citizen in exchange for paying the taxes related to the contract, and is this considered an illegal toll (maks), and what is the definition of an illegal toll (maks)?

If the work of the contract writer exceeds the work for which he receives a salary from the state, then there is no objection to him taking a wage for this additional work. This is considered a legitimate compensation (a wage for work) and not a "maks" (unjust tax). The "maks" is what the tithe collector or the toll collector takes unjustly and aggressively.