If he is a nice guy and a good father to your daughter, I think it is wonderful that you found each other.
That said you need to ask yourself do you want to raise your daughter inside the baptist church as well as the Catholic church or not. Interdenominational marriages do work but they require some work and some education meaning you will need to educate your daughter regarding what both denominations teach and let her make her own decision when she becomes an adult.
A Catholic is obliged to raise their children in the Catholic faith, or at the very least to do everything in their power to raise their children Catholic.
There are some inaccuracies here.
If you wish to marry to marry him, you will have to decide what church you want to him in.
A Catholic is obliged to marry in the Catholic church otherwise the marriage is invalid.
In order to qualify for a full Catholic mass, your boyfriend may have to convert.
It would be possible to have a full Catholic Mass, even if the groom is not Catholic, however it would be very strange as the bride would be able to receive the Eucharist, while her husband would not.
You will have to check with your local priest because every priest is different.
Yes, she will have to check with her local priest, but not because every priest is different, rather because there is some essential paperwork her priest will have to do in order to make the marriage of a Catholic to a Baptist valid, and particularly if the ceremony were to take place in the Baptist church.
If you decide to marry him the baptist church, there is a good chance that your marriage may not be 100% valid from the Catholic church perspective.
If she marries in the Baptist church without a ‘dispensation from form’ the marriage
will not be valid in the Catholic church, and she will still be living in sin.
Your best bet is to speak with your priest and pray to God for guidance because this is a decision that requires time to make.
Indeed, you should speak to your priest as soon as possible and get good, solid Catholic advice - which is what I think Adamski has suggested in your home language, OP.
I am concerned for you both from a Catholic point of view and from the point of view of you being a non-resident in a foreign country. You need someone to be giving you good solid advice, and not strangers on an Internet forum either.