If neither of you is using a realtor (and as a buyer, you SHOULD...no $$$$ comes out of the buyers pocket)..well...two old sayings come to mind...
"a fool and his money are soon parted"....
"any doctor who has himself as a patient is a fool"...
Here are the cons:
Poorly written, non-binding contract with loopholes and things in it that you may be unaware of, and surprised to find out..at closing...
Misrepresented: square footage, lot size, problems with the home, age of the home, tax parcel numbers missing or wrong, non-disclosure of HOA fees and dues (if any), home not priced right for the market (you almost always end up paying too much), no negotiation on price,
I could go on and on....
Pros: None that I can think of...
Go get you an agent...the SELLER pays any "commission"..not you...and you would do well to be represented...