If you want to do real estate then Finance would be a good choice, but most of the classes are geared towards bonds, international finance, corporate finance, banking, etc, you will get a good dose of the time value of money.
I did an MBA with a general background, mostly because I was going to school at night and just had to take what classes were offered that fit with my schedule. But most of my "extra" MBA classes were in Finance, since they had numbers in them, they were more comfortable to me than some of the fru-fru economics classes. Engineering Economy doesnt = Economics, Engineering Economy is more like a simplified version of finance.
The marketing,accounting, and management classes are a nice change from what we saw in engineering school, I enjoyed my program and would do it again, it also gives you a segway into another market down the road if you choose to do so..