Suing an engineering consultant for the delay of service delivery

Dear sir/madam,

We have an issue related to service delivery with an engineering consultant in Dubai. This is related to the construction of a villa in Riyadh, KSA.

The contract required them to provide us with detailed design services related to a project which included the MEP, facade, landscape detailed drawings, and tender documentation for submission to the contractor to construct the project.

Chronology of events:

- Contract signed: 19th March 2021

- Concept design documents submitted to OMTO to start their work: 29th June 2021

- MEP package received: 27th July 2021 (was promised delivery in 10 days, they took nearly 30 days)

- Full MEP and schematic design documents received from OMTO: 27th August 2021 (4 weeks late)

- Approval and payment made to proceed to detail design stage: 8th November 2021

- Detailed design package received: 2nd January 2021 (4 weeks late)

We wish to sue them for the delays and losses incurred by us.