taxes and the out of state investor?

[Carla Krash]

I live in the area and have been investing  here for about 12 years now. My mother, who is retired is considering purchasing a property in Philly and paying me to manage it for her. She's looking for modest cash return as a substitute for the stock market which she's sick of.  She'd also like to see some appreciation if possible!

After looking into it a bit it looks like the tax repercussions on capital gains for an out of state investor when she sells in the end are so negative it might be prohibitive. Can anyone share some experience with this? Here's one article I read on the subject but I'm interesting in hearing more.