NYC, NY. We have a fully executed letter of intent which explicitly reads: "This letter serves to confinn the intent of Pizzarotti LLC (the "Construction Manager") and Fujitec America, Inc. (the "Trade Contractor"), together the "Parties", to enter into a Trade Contract (the"Contract") relating to Vertical Transportation ("Scope of Work") and other related work in connection with the project located at 45 Broad Street, New York, NY (the "Project") in agreement with Madison 45 Broad Development, LLC (the "Owner"). While the Parties conduct their Contract negotiations, Construction Manager has requested, and Trade Contractor has agreed to proceed with the Engineering Analysis of the Building Sway for elevators PEI,PE2, and SE3, which will require the layout." We have not custom fabbed materials or put any labor on the job other than the engineering. Can we lien the $ engineering when we don't yet have a fully exe contract (process is being delayed by COVID19)?