The Federal Emergency Management Agency (FEMA) and  and the Small Business Administration (SBA) have a joint disaster recovery assistance office at the Enterprise Center in Batesville. This office will be open until June 13.
Hours are 8am to 6pm, Monday through Friday, 8am to 2 pm Saturday.

Enterprise Center
275 Nosef Drive
Batesville, MS

Both agencies recommend beginning the application process online.  Links to both FEMA and SBA assistance can be found at this link:
https://www.msema.org/get-assistance