Is it ok for another man to come into marital home before divorce decree? Is it disrespectful?

You have to ask? Seriously? And people wonder why divorce rates are going up? Marriage is not respected anymore. Respecting a spouse/mate and a marital commitment used to be valued/important. Vows/promises used to mean something.

If you mean "another man" as LITERALLY another man who just happens to be friends or a worker, nothing wrong.

If you mean "another man" as in "boyfriend," YES. Do NOT ever even date someone until the divorce is completely finalized. It is more than disrespectful.

Never stopped my ex wife!!!

Do you two live together still? If so, I'd explain that dating should be outside of the home considering you two share a residence and that can be seen as a sign of disrespect.

I cant see any problem with having a lover in your marital home, but it might be unwise to move them in, since hubby/wife might get really upset about it and cause problems

its not illegal but its disrespectful and tactless especially if there are children

do as you please, its not the worst thing you could do.