David Soble from Proven Resource is a Metro Detroit real estate attorney with lots of experience and a strong following.

My cash flow, albeit smaller is 100% FREE to me, as I have no money invested to earn it, and I still have my original investment which I can use to repeat the process. the return on investment for a 100K house that makes 1000/month is 12%but a 100K house with a 100K mortgage that makes $200/month is infinite. also, when your house is paid off you have  terrible return on equity, it's important for us to all maximize what resources we have in all areas.

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There is no magic bullet.A sophisticated Sponsor, like us (shameless plug), should be able to guide you not only through the investment but the tax ramifications as well.

The fact they are complaining online might be an indication the property manager dealt with them properly so be sure to ask the manager for their side of the story.I hope this basic guide helps.

Its the most valuable resource we have and we have to decide how we want to spend it! 

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If you have to go buyer leads—expect it to cost more and you’ll want to create a couple “lead magnets” like free “how to sell in 5 easy steps your house guide” or “Inexpensive upgrades for a huge ROI on house sale price” or something like that to incentive people to fork over they’re information or like your page.

Here are some recommendations for you:Find and connect with other BP members that are in your area: http://www.biggerpockets.com/meetSet up keyword alerts to be notified of the topics that interest you: http://www.biggerpockets.com/alertsRead Beginner’s Guide: http://www.biggerpockets.com/real-estate-investingCheck out BP Podcasts: http://www.biggerpockets.com/renewsblog/category/podcast/If you wish to tag someone in the conversation on the forum, type @ followed by their name and then select the name of that person which should appear below the comments box.

Here are some recommendations for you:Find and connect with other BP members that are in your area: http://www.biggerpockets.com/meetSet up keyword alerts to be notified of the topics that interest you: http://www.biggerpockets.com/alertsRead Beginner’s Guide: http://www.biggerpockets.com/real-estate-investingCheck out BP Podcasts: http://www.biggerpockets.com/renewsblog/category/podcast/If you wish to tag someone in the conversation on the forum, type @ followed by their name and then select the name of that person which should appear below the comments box.