The Situation
You can usually date it. There was a point where decisions stopped being made between the two of you and started being checked with someone else first. Now you are arguing about things neither of you actually cares about, in phrases you can hear did not originate with either of you.
The exhausting part is that there is nothing to point at. Every individual comment was reasonable. It is the accumulation that has taken the relationship somewhere neither of you chose.
Why This Requires a Case Review
I turn down about half of these, and I would rather explain why now than after you have paid.
Sometimes what is described as interference is a family member who was right, and the person writing to me is not ready to hear that. Sometimes the influence is real but it is not the actual problem - the relationship was already thin and the mother-in-law is where the strain became visible. And sometimes what is being asked for is work against a specific named person, which I do not do regardless of how justified it is.
What I Actually Do
Where I take the case, I work on the influence rather than on the person carrying it. That distinction is not a legal formality - it is the reason the work holds. Nothing happens to your mother-in-law. What changes is the weight her opinion carries inside the relationship, which is the thing that was actually wrong.
Twenty-one days, then a written report describing what was operating and what to expect. People usually notice it first as an absence: a conversation that would previously have been relayed onward, and simply was not.