How to create a lien as an optionee

[Brian Kempler]

I am looking into a method for cashing out as the (middle) investor in a sandwich lease option. It was discussed on this forum that you could record a lien on the property as an optionee. 

The lien amount is the spread between your and the tenant buyer's purchase price in the respective options. 

Then during a single close with the tenant buyer, the seller's sale proceeds are used to pay the lien and cash you out.

Can anyone point me in the right direction on how to record a lien? I know how to record a Memorandum of Option in the county I invest in, in Ohio. I have no experience making or recording liens. If this is something that should be done with an attorney I will, although if either can do it I would prefer to learn myself.