I am a residential designer providing home plans to builders and homeowners. I rent my office from an engineer who provides all the engineering for the plans I design.
He recently hired an employee to help with the workload. As the work slowed seasonally, he needed to keep the employee busy. He began designing houses to create a portfolio of plans he could then market and sell. He has done this without consulting me.
I've been renting from him for almost 12 years and designing for 20.
I'm not aware of him actively marketing the plans to any of my customers yet but, I can only assume he has or will be.
I don't wish to pack up and move out. He is always the type of person that sees things only through his own lens. I don't know how else to get through to him.
How should I handle the situation? Is there any good advise?