and another thing: my attorney told me that i can not go inside of my property before i didn't get my docs, the house is vacant.

I ran my contract through an attorney to double check its validity, since I had done all of the negotiation and forms myself.

(decent deal in a HOT Chicago market) but the home comes with some violations from the prior owner, they are 10 and 5-year-old violations, my attorney believes should not hold up closing, my mortgage broker has a different opinion. the total to cure violations is about ~30k-40kMy lender misleads me from the beginning of the transaction, leading me to believe I can purchase the property with conventional financing and 10% down, he knew the property had violations.

I would talk to a good securities attorney like @Jillian Sidoti to see what issue you may need to deal with. 

Again, just check in with the attorney who did the quit claim deed.

The seller would either have his/her attorney prepare docs or you could ask the closing attorney/title company to prepare the Note and Deed of Trust for an additional fee.

The large certificate investor company I was going to buy it from had every nuisance and demolition lien on other properties come up in the title search for this lot that had no liens and my attorney told me to back out.

As far as whether you go with an LLC or LP, check with your attorney. 

If you have a real estate attorney, ask them if they have a "Cash for Keys Agreement".

@Sergio Aguinaga you will need to check with an attorney in your state to get a definitive answer, but if you in the eviction case you will most likely be allowed to keep the security deposit.