Hi Patrick,
I am new to real estate investment. I just started learning at BP a couple months ago. But I live in Diamond Bar for the past 6 years and know the area. As a BP fellow and people from your neighborhood, I would share my opinion with you.
First of all, it’s a very smart choice to try to buy the house you are renting in this area as Keep and hold for appreciation. This is a very good and safe neighborhood with fantastic schools. House value is very stable over the years even during the recession in 2009. For a college student, you are already thinking like an investor! Great for you!
However, this area is NOT for cash flow investment unless you do something creative like house hacking. Living in one room and rent the other 3 out. Even so, giving the high property tax and other expenses and maintenance, plus the CapEx reserve, you may still be short. If you want to flip the house, you better follow the 70% rule for flippers, otherwise, it won't be a profit. Also, you will need to consider the finance for the repair as well as the down payment.
One thing that may help you negotiate with the owner is to find out why the he is selling. The more info you find out about the owner, you can use it as your leverage in your negotiation. I don’t think you can get the house appraised and estimate the rehab in such a short time, but it could be helpful to take pictures of the problem areas in the house, looking up the estimated cost and show him the numbers in your negotiation.
Here’s a link to some posts on the Rehab cost estimate. Hope this will help. https://www.biggerpockets.com/renewsblog/estimate-...
Whether you decide to go for it or not, I cheer for your courage! Do not get emotionally attached to this deal. Keep a cool head.
Best of luck! Let me know how it goes.
Polly