In addition to what  @John said, let me add one more reason why mentors charge fees:  When students don't pay any fee, there is little incentive to actually take the coaching offered seriously.

At what point in the application process do you ask an applicant to submit a background and/or credit check?

They charge more because if a pipe remains busted for a month it’s worse than a day. 

In regards to the comments about profiting from the HOA's, The HOA's are Not-for-profit entities, If you owned the property management company that won the owners Board voted contract to manage the property, that's an option to make some additional money but you can't make money off of the HOA directly.I would also suggest paying attention to your competition in the area, apartment buildings, What amenities are being offered versus what you'll be able to offer with your unit, what are they charging versus your all in cost to operate your property, etc. lastly pay close attention to the interiors of the condos and apartments in your market since you'll have to offer similar or a better interior depending on the other amenities with your property.

A hard money lender would likely charge 8-12% interest.A home equity line of credit (HELOC) is running around 5 - 6%.If he invested his money with someone else, he would expect a fair market return on that investment.

Hard Money Lender: Your family member could charge you points up front to borrow the money with a fixed time frame to pay back, example six months, but the HML is amortized for one year.

My father wouldn’t charge for labor but will charge for some things.

The mobile homes and the lots are owned by the park.Gross monthly income is $2,070/monthOwner pays:-Trash is $64/ month-Water is $200/month-Tax is $25/monthTenants pay their own utilities, electricity and gasSelling because it has a lot of equity in it$84,000 with option of seller financingRent ranges from $275 through $575/monthOwner charges a lady who has lived on the park for 7 years the lowest rent of $275/monthCity sewage and city waterAny and all advice on this deal would be greatly appreciated.

Hence, the advice you get will not always be applicable to the Canadian market.

USC charges $40,000 annually for tuition, how do you justify $40,000 for 4 days.