Send them a letter telling them you found their house to be apparently vacant.

It was a little frustrating, but ultimately I found tenants to take over the property the day after the tenancy ends.  

Always remember to do the math analysis and try to look at your prospective properties before you make an offer or at least try to add a clause in the sales contract that would give you the time (about 15 days) to make a detailed inspection and possibly back out of the deal without a penalty that will not hurt you too much.I am 59 years old and I found BP about a year ago and I am still trying to decide what to do.  

I found this form online that seems to be sufficient.http://www.cslb.ca.gov/Resources/MechanicsLien/ConditionalWaiverAndReleaseOnFinalPayment.pdfAlso, what do I need for taxes?

Found that episode right after posting.

I actually know someone on the founding team.They're not focused on a real problem.

I have found that regardless of what the REI books say, the banks consider anything that is an investment property "commercial" and require at least 20% down.

My wife used to work in the DC area, so after she rented a small 1br condo in Alexandria, VA for a year, the landlord put it up for sale, and we bought it at what I believe to be FMV with a bit of savings due to no realtor commissions.Fast forward a year later (now), my wife found a job in NH, so we decided to giving renting the condo a shot.

I actually found Charlie Reep by looking on the Internet before reading Josh's post above, but he is great.  

My wife and I are looking at eventually becoming investors so found BP and am looking forward to learning more about what we're potentially getting ourselves into.