Multiple years of federal business tax returns on tight timeline

I run a small business that has substantial operating loss carryforwards. We last filed a tax return in 2018. I now need to file returns for 2019-2025 in the next three weeks for personal financial reasons (I am applying for a mortgage, and need the company's returns to be filed in order for my income to be considered as part of the mortgage application). The books live in Xero, and are completely reconciled for 2019-2021. I am about 90% of the way through reconciling 2022-2025, and should finish reconciling those years in the next week. I'm looking for an experienced tax preparer who has ample experience filing small business returns and who has the bandwidth to get this done ASAP. Some key details: we are a DE C-corp. Our employees are primarily in NYC, but during certain years in this period we had employees in IL and SC as well. Our capital structure is somewhat more complex than normal because we began life as a startup backed by angel investors, and as a result have a convertible note structure. Happy to answer any other questions you might have. In your response, please provide two details: 1) roughly how many total hours of work you think will be involved, and 2) roughly how many days of calendar time you think you would need to get this done, assuming that the Xero books are given to you clean and assuming that any questions you might have along the way are answered promptly (this project is currently my top priority). Thanks!