My future husband is from Morocco
If you are married by then, and your marriage is registered in Poland, then it should be straightforward.
First he needs apply for a Schengen visa, which shouldn't be a problem and will be free for spouse of Polish citizen. It would be very helpful if you could be with him when he goes to apply. You have to remember that almost by default authorities assume that this is a marriage of convenience, therefore you being present helps alleviate their suspicions.
Second, once he is in Poland, you need to register him as a resident at your address (zameldowania) for which you need either proof of ownership or rental contract. You will take proof of address registration, together with your marriage certificate (the Polish one) and copies of his passport (every page except blank visa pages) and your ID (dowód osobisty), photos and filled application forms, plus birth certificates of your children if you have any, and apply with these documents for his residence permit. Unless there is something wrong with your application, he will receive a temporary residence permit valid for 3 years.
