Sorry, Kristi, I don't know your zip code but I will tell you this, depending on how rentals are handled in your area they can be a very good source for immediate income. It's not a lot of income but it's quick and fairly easy. Not only that but an awful lot of homeowners have become what I call 'accidental landlords' due to the downturn in home prices and the economy. They don't want to or don't qualify for a short sale but they also can't sell the home without losing a lot of money so they decide to rent instead. This will become an excellent customer base for you in a few years when the market starts to recover. In the shorter term, many tenants will rent for a couple of years and then buy, so if you stay in touch with both the landlords and the tenants it will pay off in time.
I am not sure what you mean by a 'mentor'. In my opinion, if your broker is getting a piece of your commission for the office, then they ARE your mentor and it shouldn't cost you anything. Their pay comes from their split of your commission. At least that's my opinion, I wouldn't give my commissions away to a 'mentor', find a good broker instead.