Estimating Selling Costs when disposing of Rental Real Estate

[Robert South]

When evaluating a rental property and considering selling expenses, what is a good realistic ballpark estimate. The properties I'm considering are around $70,000. I've heard 6% realtors fees + 2% misc for a total of 8% if placed on the MLS.

However, if I sold this property off market to another investor selling costs could be much lower but I have no idea of how low.

Any advice would be greatly appreciated.

Also, can anyone recommend a good iOS app for evaluating buy-and-hold rental properties?  I'm trying to avoid the monthly subscription model.

Thanks in advance!