Which allows you to charge slightly higher rents, but more importantly get units rented more quickly.

Get a pet deposit and charge a monthly pet rent in order to maximize profits and make sure your covered in case the pet does end up damaging the property! 

I charge $25,000 for the non-refundable Option fee.

My third spreadsheet has the same X axis as my first spreadsheet and the Y axis is the amount needed to offset the mortgage based on whether I charge $800/$900/$1000 a room for rent, all the numbers are pulled from the county obviously:Electricity, gas, repairs and maintenance (10%), capex ($200), vacancy rate (10%), sewer rates, water rates, solid waste fee, lawn care, property management (10%).Am I missing anything?!? 

As far as me loaning money it depended sometimes I would charge just 6% if very quick deal, some deals were a few days of rehabbing then a few days on the market.

Even if it was, it would be 10x's the cost of what the mortgage company would charge for the 15 days.The mortgage company's insurance policy incurred the risk of covering your property while you were uninsured. 

A lot of investors, especially newer ones I deal with ignore the emotional aspect of their investment decisions... i.e. what is and isn't going to keep you up at night.

Why don’t you run a credit report in her to asses her default risk before any more emotional decisions are made and more money wasted

Subsequently this allow me to charge a little bit higher for rent.

@Miguel Nava I'm not sure but is it anything like the trash service out here where you can charge the tenant for it but if they don't pay it gets added to the property tax bill?