Quote Quoting aimeed
He came into the marriage with 20K more than me but also 15K in student loan debts (I had no debt).
If you are trying to segregate out premarital assets, and this premarital debt was paid off during the marriage, the court should reasonably consider the premarital debt.

Quote Quoting aimeed
He used part of his pre-marital funds on the down payment for our home (which was purchased after we were married). a) Is this considered "commingling" of funds? b) How would this be viewed in Michigan Courts? c) How would this be considered in regards to calculating how much of his pre-marital assets should be given back to him?
Well, if you are arguing that you should get your premarital assets back, but he shouldn't because they went into the marital home, you probably won't get much sympathy from the court.

Commingling assets, or putting them into a joint asset such as a home, certainly can inspire a court to hold that they have been merged into the marital estate, particularly where there has been subsequent joint contribution to the taxes (e.g., mortgage payments, home improvements, tax payments). The longer the marriage, the more likely a court is to find such a merger.