Many options available.

At this time the interest rates may make keeping your existing home a better option than times when rates have not risen as substantially.  

I borrowed $110K from a private lender for the purchase and self funded the repair of the offices. 3 months later, I rented 6,000 sq.ft. of office space to a corporation for $21,000/month + utilities for 5 years with another 5 year option.

Cash for keys is a good option but it depends how much they owe.

Plus, compared to other parts of Florida, the Panhandle is still relatively affordable, making it a great option for first-time investors or those looking to diversify their portfolio.Another huge perk is Florida’s no state income tax and landlord-friendly laws, which make it easier to manage and profit from rental properties.

Ask yours about buydown options!...

I am going to look into all of the above options. 

Cash out refinances are also an option it just depends what debt you have currently and if it makes sense to pull that out.

If you find it difficult to rent then you can always explore the credit option.

Every single one of them has either said no, they didn't, or "I didn't know that was an option."