Before I start realize what I or anyone else says on this board or others is nothing more than anonymous internet poster and whatever is said should be heavliy scrutinized nobody could possibly know what is the best situation for you better than yourself. However, I will try to offer some things to think about while making this decision.
One thing very few people realize until it is to late is that law school scholarship conditions are very stringent. They may not appear to be as they will often say you need to maintain a 3.0 GPA and anyone that received a scholarship from an ABA law school got a 3.0 without even trying. Unfortunately, that is not how it works in law school. Rule of thumb is at most schools only 35% of the class can have a 3.0 GPA. Everybody could perform extremly well on their exam, but they are curved and only a certain amount of can get an A or B it is simpy how law school works. This NY times article does a good job explaining it. http://www.nytimes.com/2011/05/01/business/law-school-grants.html?pagewanted=all
I don't know what the conditions of your scholarship at Cardozo are, but you need to ask. The students in that article did not ask questions and got burned for it and that is their own fault. If someone is giving you a 100,000 you need to ask what, why, how, just really get in depth ask serious questions. I.E. How many people have scholarships, how many people lost them, do not hold back anything the schools will disclose if you ask, but if you don't press them they have no problem taking more money if you don't satisfy whatever standard they have created. Considering they stand to make literally millions of dollars if the conditions are not satisfied they usually bend them in their favor.
-NEGOTIATE FOR MORE MONEY-
If the conditions are not favorable ask for better ones. If you want money from Brooklyn tell them about your deal at Cardozo neither school will take anything away from you for asking, but they won't give you anything extra for being silent. Remember law schools are a business above all else and you are a customer if you were buying a house you would negotiate, ask questions, etc. Law school is as significant an investment as buying a home you have 100,000 or more on the line, 3 years of your life, and it will be your stepping stone into a legal career so ask the people in charge questions and see what you can get out of them. The schools will raise their tuition every year to get an extra 2k out of you and once your enrolled you have no leverage, but right now the ball is in your court see what you can get. It is an everything to gain and nothing to lose situation.
I realize you have a unique situation by having a family and again I am an internet anonymous poster that cannot possibly know what that relationship is like so again take the advice below with a grain of salt.
I personally never think PT law school is a good idea. The legal field is a very compettiive profession and if your not going to go all in it probably is not worth the time. My reasons for saying this are that law school is very difficult and there is a good chance you could fail out as a part timer if your dealing with a career, family, and so on that is a lot to handle. Even if you do manage to pass the odds are you will finish near the bottom of your class by taking on all those responsiblities it is nothing against your intelligence just the simple fact that a kid with no career to worry about well have more time to study and do better academically. Your grades will be a big factor in getting your first job you at the bottom of the class which odds are you will be going part time, dealing with a career, a baby, and a fiance then that doesn't bode well for your first prospects.
Furthermore, you will not be able to get law school internships, summer associate gigs, judicial externships, none of that will be available to you because you will be working at your career. So the odds are you will graduate at the bottom of your class with no legal experience and considering the competitiveness of the legal marketplace today it will be tough going and you will have spent 100,000 to put yourself in that situation. Since few prospects will be available you will stay at the job you had before and have spent a lot of money & time to be in the same situation you were at before.
It is true you may finish at the bottom of the class and never get an internship at Cardozo either, but the odds are you will do better as a full-time student. You might be valedictorian at Brooklyn while working it is hard to know how it will turn out, but balancing a career with a family and law school is probably not going to end well. Law school is very hard particularly first year and you cannot possibly appreicate that until your in it.
RETAKING THE LSAT
Again for the reasons you stated this is usually not a good idea. Life gets in the way another baby could be on the way next year, a promotion at work could come up, your fiance could get relocated, a family member might get sick, or you might retake and get the same result, but think you could do better next time. Any number of things could happen and the longer you put off going the less likely it is to happen. If law school is really what you want to do then you should strike while the iron is hot. You have options and you have gone through the whole application process so you have put in work already and I imagine you did everything you coudl realistically do the options probably won't improve drastically the next time around especially since admission standards are getting higher and higher.
As an anonymous internet poster that knows abosolutey nothing about you, your situation, your likes, your dislikes, or even the slightest thing about you I would choose Cardozo. I would do this for the reasons listed above, but I only posted that to make you think you certainly know what your capabiliteis are better than I do. I know many 0L's including myself back when I was trying to decide look to the internet for guidance, but indiviudals that post anonymously on the interent are often simply dead wrong, have no idea what they are talking about, have an agenda, or any number of things. Don't be Michael Scott when making such an important life decision http://www.youtube.com/watch?v=kFBDn5PiL00
Good luck to you whatever you decide.