Are there any issues with photographing a famous persons grave and producing artwork from it?

You need an attorney to draft a contract of sale.

Yes, it's generally possible to trademark the name of your software, as long as it is not a generic name or descriptive of the product. You should also do a clearance search to make sure no other company is using the same or similar name for similar services. I would be glad to discuss more details and help with the trademark process. Thanks.

It is always difficult to set a fair compensation package when a valuation of a company for equity purposes is unknown. Normally when funding a startup company, investors are given a valuation for their investment should the company be successful. If this is not ascertainable, I would suggest setting forth certain milestones of the amount of time expended and relate that to a percentage of equity in the company.

I would be happy to review your contract. I am a registered nurse myself as well as an attorney and have a great deal of experience in contract review. My flat fee is $300 for this service and would result in a thorough evaluation of all aspects (from a legal perspective) of the current contract and how the amendment alters that legal perspective.

You are in a difficult position, as I'm sure you are aware. The problem here is that once a person cosigns for another person, that person is obligated to pay the debt. While there may be defenses available, such as duress or coercion, these would be extremely difficult to prove and highly unlikely to succeed. As to your statement that you "believe documents were submitted on my behalf without my approval." If you are alleging fraud, in other words, that you did not really sign or authorize your signature on a document that was necessary to create your valid signature on the mortgage, then perhaps you have a case.