Have you budgeted for the cost to correct the drainage issue within the basement and the exterior drainage issues that may be allowing water to enter the basement?

In my rentals I frame a generic welcome letter and place it somewhere visible for the guest when they enter my house.

If you enter an emerging market at the right time you can benefit from a lower purchase price and then as time goes on to increased appreciation AND rent, where some markets see little appreciation or rental increases year after year.

Then just enter with your key and fix it.

I don't think you could enter into a legal contract (e.g. a purchase agreement or mortgage) until you're 18.

@Emmanuel Kehinde sorry to go so far off topic.... what does the contract say about you entering the property?

I explained to him I don't need his permission to enter the house, their lease and the law requires them to allow me to show the house.

If you follow that path, make sure you vet it to be legal.Second, and I think this is more common, enter into a tit-for-tat "agreement". 

Just enter parameters into google.

When you get to your 3rd year, as with most degree programs, you will need to enter some sort of apprenticeship program for college credit (paid or unpaid) in order to complete your degree.