I know I wouldn't want to rent to those individuals.

If you made a decision that doesn't match your qualifications, admit your mistake and make a better choice next time. 

@Ashish Acharya I didnt know any better and always created a new llc for new purchases; I assumed these 3 family homes would have more individual protection in th event of any lawsuits.

Yet, when your in a different State and trying to sell your home, and you must rely on the contract that you have made with a Realtor you have spoken to on the phone and a home inspector, your choices seem limited.

I asked the chimney contractor for his license # which he gave me  After the work was complete, and closing docs have been signed the buyers agent informs us that the the chimney contract license was a business license not a contractors license and that we now need to pay $5,000 to have the contractor of the buyers choice do the repairs.  

Out of those fly out to your top 2 choices and learn more about neighborhood.

Additionally, you are not limited to only three choices. 

Should the property owner pick up the interest expense even though the mortgage company issued a 1098 to the other individual?

You may have one individual within this company that represents you (the buyer) and a separate individual that represents the seller, but they are ultimately working together to get a deal done and collect a commission. 

You just have to sign up for an account and upload to each site individually.