Bring in a lawyer. Welcome to the big time.
If you take any other advice here, you are an idiot. Not one person here can honestly tell you what to do unless they are part of your negotiation.
If you advance sufficiently far, you should be able to get some basic contacts for the company. I would ask the legal team there what advice they have. But if you take my advice without asking a qualified lawyer, you are an idiot.
Don't ask legal questions here, and don't follow any advice given. Especially this advice about not following advice.
This is the best advice in this thread, with one caveat. You need to have a disinterested third party, i.e your lawyer, walls you through what rights you have and the potential ramifications. You already said you are talking to your lawyer, which is a ritual step before you go further. Your lawyer can advise you on what you need too do to protect yourself. For example, can your previous contract employer claim to own your patents? I do not know the answer to that, but it is a critical question, IMHO, to know the answer to before you proceed. Your lawyer can and should review previous contracts to clarify that as well as advise you on how to proceed.
the caveat: Remember the lawyers for your prospective employer are bound to look after your prospective employer's best interest. They do not represent you, and thus anything they say may not be in your best interests. I would leave them out of the discussion unless they employer brings them in, and then would let your lawyer talk for you at that point.
Personally, I would approach prospective employee who brings patents to the table as a professional and evaluate them based on what I think they can do for me, and the patents would not be an issue unless I planed to use them. Quite frankly, if I was interested in them i would bring them up because i would not want them to become a problem after I hired you. I would be comfortable discussing how I would like to use them and work out a mutually beneficial agreement; which of course would involve my consulting with my attorneys to understand the legal steps I need to take to protect my interests and to avoid a future lawsuit. Then again, that is my personal opinion so take it for what it is worth;which is exactly what you paid for it, zero.