First time home buyer

[Jason Tyrrell]

Hello everyone, 

I have been living In my fathers second home (2 bed 1bath) and he offered to sell it to me. His offer is $28k down and $1000 a month for 72 months. ($100k total)

I am looking to invest in rental properties. Im looking for any suggestions. Should I get a mortgage payment or pay him cash for the 72 months?  

I am paying $800 a month for rent with two other people living with me.. between all of us the monthly expenses are on average less than $500 each a month. 

Am I better off staying there with low living expenses and go else where and buy my rental property?