Basically from my understand , if you are buying a home directly from a homeowner and you are licensed you have to make it clear that you are not representing them in the transaction.

Do I have to prepare extra money in my self directed Roth IRA for maintenance/repair/tax/insurance if I invest SDIRA into  LLC ?

Make sure you get the property taxes and insurance costs down.

Here are the numbers:Monthly Payment: $1,255.60Principle balance: $177,466.11Principle: $301.61Interest Payment: $555.52Escrow Payment: $398.47Mortgage Insurance Payment: $125.36Additional Principle I pay each month: (Roughly) $144.40, to make the monthly payment an even $1400.I was given a rough appraisal of about $275K to $290k, and I know id need to meet the 75% LTV rule, so there's probably not as much Cash out equity available as I'm hoping for, but I figure Id see what my options are.  

Tenants required to handle all inside maintenance and outside is the responsibility of the homeowner.

But most of the people who were being foreclosed on were home owners not investors.So to protect yourself, make sure that you can cover payments when vacancy goes up and make sure you are cash flowing enough to cover expenses still if the rental prices dip a little and save some of the cash flow for an emergency fund - maybe 5k per unit. 

I got  more time from them, butI  still have to change insurance companies. 

I was told the heirship affidavit was the last thing I would need for the title company to insure the title to the property.

Mortgage payment with taxes and insurance are estimated at around $1000.

The closing costs are all one-time fees and the pre-paid/escrow items are all representative of on-going expenses like insurance, taxes, and interest.