Can I write a film based off of real life people?

In general, you are free to write about anything or anyone you like, but there are two main areas of concern in this context. The first is...

Can I sell my Disney DVDs?

No, you are free to resell your DVDs.

Am I liable for copyright infringement if I use a song in a movie, but without music and with altered lyrics?

As noted, it could be problematic because it features prominently in your scene. Even if you are using a small amount with songs and lyrics that is...

Can my competitor (and ex co-owner) use pictures of weddings that were done by my company although I bought her shares ?

As noted, this requires a deeper analysis. It all depends on who owns these images and the context of her use of them. We just do not have enough...

You are free to use whatever name you like so long as that does not pose a conflict. If you are seeking to brand this business, then you need...

If this is not commercialized you run a much lower risk, but anytime you post content like this online there is some risk. It is doubtful however...

Can I copyright a collaborative project that is no longer being worked on?

As noted, the default is that it is considered a joint ownership split equally. Each owner is free to exploit the work as they wish without the...

Is there an outlet on line to have my declaration read and and edited or given possible short cuts in the presentation of my

This is not really a legal question. But of course you can hire a proof reader if that is what you are looking for. Try looking on UpWork.com.

Can someone use separate words in their advertisements for sale of their products if those words together are trademarked?

You can't trademark a concept, which is why this a not a good trademark for what you have here. Anyone is free to use the same terms descriptively...

As noted, we would need to know more details about your objectives. It could be problematic if by doing so you present a false association,...