Just an FYI post from experience on the LE side.
What will happen if this is enough to make their radar (depends how busy the agency(s)/dept(s) are, and how big a fish this seems in relation to their current workload).......
There will be a longer than anyone wants investigation. This stuff is cut and dry to anyone on the outside looking in, but you have to have very good/specific evidence when this goes to the prosecutor. Otherwise the defense attorney will just advise client to plead not guilty and take a soft/weak case to a jury.
So, the investigations almost always take much longer than the public thinks it should.
Sometimes they can only prove beyond a reasonable doubt part of the offenses/fraud. The whole "its not what you know, its what you can prove" is in effect. For example, its not unheard of for people who scammed $50k or $100k to get charged with something like $10k as that's what authorities could prove without taking and even longer amount of time to get the proof for the rest of it.
Once charged, then there is the whole balancing act of punishment vs restitution. In fraud cases, the victims are many times regular hard working people that could use that money back.
Throwing someone in jail is how you 1000% guarantee zero victims recoup any monies while the offender is serving time. And many times, once they have done jail time, they will not be as motivated to pay things back once they are released.
So, if there is a decent chance of victims receiving restitution in a timely manner, deals will be cut that avoid jail (and sometimes avoid felony convictions) as long as they stick to a scheduled payment. And even then, when they fall behind, authorities are a bit lenient if they feel they will get back on track with payments. So they don't just toss them in jail immediately after they default.
The TLDR:
The investigations always take a while. And the outcome is never ideal. You generally end up either with them going to jail and victims never paid back, or they pay back slowly and don't go to jail.
And that outcome never makes everyone happy. As the ideal situation would be to recover the money AND they serve time. But in real life, it's usually never both. Authorities usually have to pick one. Punishment or restitution.
Point being.......don't expect the LE response to be as fast as you'd like and don't expect the outcome to be ideal. It just never is in these types of fraud.