If it is paint, inside, perhaps but even then they pay rent and you pay them for the work they do.

I'd have to quit the business if I was paying that sort of price for an AC system. 

You have bills to pay and if they promise you your money by a certain time each month, then you should be getting it.

But making you pay half I dont believe is right .

I don't trust HOA's at all and there is no telling how that will play out.

Then quickly asked to pay more fees.

I also received no scholarship or financial aid, and would be paying the full tuition each year. 

The rates for a purchase money loan (one where you take the loan out to directly acquire the property) vs when you do a "cash out refinance", which your loan would be if you chose to pay off the line with a loan on the primary residence, it typically done at a higher rate.

And, you will still be working long hours, but now for very little pay (at least for the first few years).  

@Tejani Jeet BhaveshThe debt does not go away it is just unsecuredIf you are a borrower and get foreclosed on if the debt is not paid off it does not go away - it is just unsecuredOnly way for it to go away would be pay it off or bankruptcyYou are seeing a lot of articles on zombie loans where people lost homes or kept homes but were underwater and old mortgage lenders are coming back after them as the debt is still valid and they thought it went away