Shouldn't the landlord be required to pay relocation to the current tenant since they agreed to deliver the unit vacant?

Backstory:  In August of 2016, I was forced to quickly relocate (19 days) to California, and because of the short turnaround time I decided it was best to rent out my house for a year because I didn't have time to get it ready to sell.

The owner of record has deceased for a few years and the neighbor says the deceased owner's girlfriend still lives there.What steps can be taken to track down the estate and "relocate the quatter" to make a sale possible?

This is due to massive amounts of immigration to the area because of corporate headquarters being relocated to my backyard.

@Emmanuel Augustin  I will be relocating to the South Florida market very soon.

For a variety of reasons, I would like to relocate to Florida, however, I need to find a really good area for our business there in order for my husband to consider it. 

My family and I lived there for 10 years and and have since relocated to Southern California.

Not vacation rental as you would have high vacancy but offering it to relocating professionals.

I relocated for work and I am wanting to rent my home out instead of selling.

Not to mention that Colorado is said to be 'the next silicon valley', so lot's of companies are relocating/bringing their employees out every month.