There are ways to eliminate it entirely over time.Steer them to an experienced qualfied intermediary and tax planner.  

I'm an attorney in Tampa and work with a team of estate planners that could help you.

I used to be a financial planner at the bank helping with mutual fund sales.I noticed, Dominika, that you are contemplating doing rent-to-own.

Val, I've seen some of this material and it is good, one of the planners has materials in our P&Z office.

I'm looking for a financial planner who has expertise in Real Estate Investing in Central Florida.

land use and planning issues are not solved on the internet unless you happen to get a developer in your particular town to chim in here.YOu want to simply walk into the planning department of the town the property is in.. and if its not in a town then the county planning department.. sit down or stand at the counter and ask these questions of the duty planner... this will give you an indication of what can be done if anything given the zoning.you can also talk to a land planner in your city or county  ( fee based) or lastly most civil engineers that do residential work will know these answers as well.that's the bottom line go to the authorities that control these issues and ask them.

@Scot M.Hey Scot,Sorry to hear about your Dad.You should probably talk to a good estate planner in South Carolina for your Mom.  

Print it out and give it to one of the kitchen planners there and they will do the rest.

Only the couple provided their last 2 Paychecks, Photocopy of all their IDs (which all passports were provided), tax returns which was just an estimate planner for year 2019 so we requested to see tax return of 2018 which they provided but the screenshot was so blurry however was still able to analyzed the numbers, and compare it to the numbers on their recent paychek.The credit report they say that they will send it to us later...When they did they only send us the credit scores then we ask to see the full report not credit score and they provided it.

You would have to seek advice from an accountant , tax attorney or estate planner to determine if it makes any sense in your situation.