There are many options to resolve you predicament.

You can file an action for a partition sale and the Court will compel the sale of the property notwithstanding whether your partner consents.

Yes you absolutely have rights and remedies to proceed against your boyfriend to recover your financial damages over the years.

Yes for sure. There are several routes available to pursue recovery premised upon the narrative you have provided.

Personnel Policies - Non-solicitation and Non-compete Agreement

The provision does not require that you remain unemployed for three years after execution. It appears unenforceable from the details provided.

Can I sue for a share of profits if I have interest in a property?

Yes. Even though the closing had already occurred, we can pursue your ex for your share of the profits because you contributed to the growth of...