The first step is to retain an experienced Eb-5 attorney who will then require you to retain an experienced criminal lawyer in the U.K. The criminal lawyer in the U.K. would then supply the relevant criminal records to the EB-5 attorney for review and analysis to determine the U.S. immigration consequences and if there are grounds of inadmissibility what are the possible remedies if any.
This would be disclosed when applying for the immigrant visa or adjusting to permanent resident status (after an I-526 approval). With the proper disclosure and documentation, you may be able to receive your conditional green card. Retaining experienced immigration counsel to prepare the application properly is essential.