Congratulations on the new born. You have a lot of things going on and there has been some great advice posted.
To start I would be very hesitant to jump on that job with your friend. If you know him and trust him, then I would find out as much as I could about the position.
With regard to an MBA, unless you already have an job in Finance, or are going to the top schools for the 2 year program then it will be worthless to you in the short to mid-term. I know people that spent over $100K plus two years of their lives doing the MBA with a vague notion of being a trader or investment banker that are doing jobs they could have gotten with out the degree, debt and time out of the workforce. I have an MBA and for the most part it would be more useful as toilet paper. However, I didn't do it expecting I was going to somehow start making millions. I already had a high paying job, it was mostly funded by my employer, and I did it part-time while working full-time.
I'm not saying that it wouldn't be useful to you in the future but since you want to retire in 10 years. Taking 2 years to study and not have any solid job prospects is just to risky for me especially with a new family and extended family to support.
Moving on to the new family and extended family. I too come from the Philippines and know all about the "in-law support". As Adventine said:
I'm living in the Philippines, and I'm telling you now, the requests for financial support from extended family are going to increase, not decrease, once you relocate here. And if you tell them you've saved enough to retire at what is to most people a ridiculously young age, you're going to cement your status as the filthy rich American who can afford to give (not lend) any amount of money.
Again, it will never stop and will only go up. Since you have already opened up those flood gates it will be very difficult for you to say no for future requests, especially if you and your wife are not on the same page. Most families in the same situation now see your wife as having essentially hit the lottery, especially with a new baby, it will in most cases be a lottery that pays out for a lifetime. It will start with the monthly assistance, do you wonder how they ever managed to get by without it? Then it will be for a special occasion, like a graduation, new birth, marriage, ect. Then it will evolve into assistance for school or a new business, what is $1000 here or there to put someone through college that can significantly improve a relatives life. Then when an medical emergency hits, which it will as the parents get older, how do you say no to your wife when it will literally save her parents/relatives life?
This is how it ends up most of time unless you set up strong boundaries from the beginning. I'm not saying this from a place of resentment or higher moral authority. You just have to understand that is how it is in most third world countries. It's not because they are greedy or just waiting to pounce on an mark, when you have very few options you have to rely on family and friends to help you out. There are no social services or safety nets, in my country if you don't have the money to pay for medical care, the have not problems kicking you out of the hospital, and I don't mean that figuritvely either.
So I would do my best to get on the same page with your wife with regards to your goals. FIRE and extended family support don't normally mix well. Oh, and if your wife is more on the emotional side vs logical, then you are in for a bumpy ride, believe me I know.
Also don't limit your self to the three choices above try to find something that will fulfill all of your goals, find a good paying job that will allow you to go to school part-time and use your GI bill to get a higher paying job in a few years. If you keep your expenses low then you will have more options as you build up your stash and grow your family.