How much is needed in repairs, roofs, hvac sewer condition?

You do need to talk with a credit repair professional.

I did the work myself, and re mediating the termites and repairing the damage cost under $1,000. 

What will it cost to get the mold remediated and what it the rest of the repair cost. 

the best one i saw so far was   ARV- repairs- holding/closing costs = MAO  but nobody explains how expensive those holding/ closing costs usually are.  

If they didn't I wouldn't even mention it..They should contact their Car Insurance or Home Rental Insurance if they want car repair, you should not be responsible..

Considering repairs, we clear $200-$300/mo.  

Instead of you paying the landlord and the landlord paying the mortgage interest, property taxes, repair and maintenance expenses, etc., you're paying those directly and keeping a small bit for yourself.

I’m going to do 203K on this one, estimating around 50-55K in repairs for both units.

Possibility is that we get a repair and replace permit, but I would need to find someone who knows the original layout as a multi-unit and put it back as it was (not sure if this is an architect, engineer, etc.)We keep it as a SFR and use cash for reno but will there be issues when we sell an illegally converted home?