Does a Successor Trustee HAVE to Open a Trust Banking Account

My brother is the Successor Trustee of our families trust. It consisted of some money from my father's banking account and my father's house as the assets. While the Trust is in the Trusts name (basically parents names) my brother never opened up a trust banking account to put the funds into. I think for the banking account that was my father's he just had the bank write him a money order in his name by proving to them he was the Trustee. I have a 1099-S form with the Trust in the Trust's name that my brother sent me as a photo just for information. When the house closed I believe he also just had the funds put in his own perusal account. he wrote me a check for both things from his account.

 

My question (concern) is now that we are at tax time is this going to be an issue with the IRS on my end? My brother still needs to get me a K-1 form. I mentioned to him about getting a Trust account and he said it was not necessary.