I open another form frm_eSignature (Record Source is also tbl_Contracts)
How?
If from a button on formA you can pass the value of a formA field to the OpenArgs property for the opening form. Seems that you don't want to do that though.
Or you can open formB in any manner and get a field value from formA if it is still open. As long as the target control is not using an expression as its controlsource you should be ok.
The more we hear silence, the more we begin to think about our value in this universe.
Paraphrase of Professor Brian Cox.