avoiding subject to problems

[Jonathan Richards]

when buying real estate with subject to / wrap around mortgages how is the investor or home owner protected from each other after the deed is transfered. For example 3 years after the deed has transfered the the investor defaults on the payments and wont evict the tenant(for what ever reason) how is the home ownwer to remedy the situation? They cant forclose and the original home owner still has the morgage! It seems to me that taking over a property like this sounds good but both investor and home ownwer are joined at the hip. How to protect yourself and the original home owner?