St. Louis Contractor needed. Sinking floor. Help.

[Andrew Robbins]

Happy Holidays BPeeps.  I have a 12-unit building in Tower Grove area.  Tenant just left after a few years, and upon inspecting the unit, it was revealed that the floors are sinking.  A more thorough investigation revealed some structural issues.  My head of maintenance is insisting that there is no way around a major, bank-breaking solution.  I am reaching out to get a second opinion.  Anyone have a trustworthy contractor they can recommend?

Thanks!