I started my LLC with a DBA name, for example Mrs. ABC. But now I would like to change the DBA to for example Mrs. XYZ. In the near future, I would like to do a trademark of the Mrs. XYZ name. However, there is another trademark already existing named Mrs XYZ (without a period). This name is perfect for my business, so I would like to keep it. Should I be able to trademark Mrs. XYZ (with a period) or the one with a period can cause a lot of problems down the road? Thanks.