Deceased Broker - 1099 Question

Hi Everyone - I'm trying to wrap up my fathers estate/business. My father was an insurance broker who had commissions paid to both his ssn# and ein#. He passed away in 2018 and still had some small insurance commission checks coming in (some over the course of a year probably would generate a 1099). We never formally notified the companies the checks came from, rather just stopped depositing and we believe they stopped sending them (we sold the house and did a forwarding address but who know if it got lost in translation). We're trying to wrap up everything with his estate/business this year and we're concerned that even though we haven't seen any checks or 1099s in about 2-3 years that a company/s could still issue a 1099. I've requested wage transcripts from the IRS but they will not send them since he was the only one on the business.

Any input would be greatly appreciated.

 

Thank you,

Eric