Homeowners can ruin a deal if they are not coached properly I have lost thousands from homeowners talking too much.

The previous owner had a bunch of dogs, who ruined the carpets with urine & tried to eat their way through a wall in one bedroom.

The government will bungle payouts as it did during the last flood disaster where some well connected flood plain dwellers received up to $3 million ( yes 3 m of tax payer money) to sell their ruined house to the province, and others fought to get enough to gut and redo a basement and the government tried to say they could only compensate for the lowest grade vinyl or laminate rather than the hardwood and granite that was destroyed.

I hired a general contractor to take care of a leaking toilet that had ruined a couple of floor joists and that’s when things blew up.

All these guys talk to each other and your reputations can be ruined very easily "hey, this landlord wanted me to install a whole AC system for $250 including materials" "oh yeah - what's their name?".

Here are the problems:1) if one just got built then that means more can be built and that ruins the whole business model of owning mobile home parks since the value is based on the complete lack of new construction.

They think real estate is simple, but just having a bad neighbour, or a bad tenant, or buying in the wrong building, can ruin the whole investment.And these are just the most obvious risks.. but there are lots of other things than can go wrong when investing in real estate. 

New roof (don't want your new work getting ruined by water damage)2.

Will GuzzardiMatthew you are absolutely correct I hope it's went well up there in Illinois.http://www.economist.com/blogs/economist-explains/...Rent control ruins local economies, creates slum cities, ruins housing for tenants and landlords, ruins home owners value.

People pour concrete down the toilets to ruin the plumbing or overflow the bathtub to flood the house.