My HOA fined me $100 for not maximizing garage parking and parking one of my car on my driveway. Is the fine legal?

Assuming this is laid out in the CC&Rs, yes, it is legal.

Do I need a lawyer? (Not sure what type to be looking for)

It sounds like you have a claim for negligence. Contact a personal injury attorney ASAP.

I'd like advice on how to hire a lawyer for a small matter. I'm finding difficulty having someone mediate small business matters

Hire a younger lawyer or a volunteer from a law school. A full consultation would be necessary to properly advise you.

Notifying plaintiff of my countersuit?

For a Cross-Complaint (countersuit) it doesn't have to be personally served. You can serve by mailing to the plaintiff. If you're adding a new...

I got summons April 6 but was able get an extension for 30 days because my cause is being worked on for possible dismissal.

No, there is nothing you need to file with the court regarding this extension.

Can a doctor not pay me for work completed?

If you have a written agreement with the doctor, it was would have to be reviewed to properly advise you. However based on what you posted, it...

What kind of attorney can help with business dispute involving fraud and embezzlemenet?

You need a business litigation attorney. You may have claims for fraud, breach of contract, breach of fiduciary duty, and others.

Yes, you can sue. You should contact a personal injury attorney. A full consultation would be necessary to properly advise you.

I want to sue for breach of contract. Which attorney is best suited for my case?

You need a business attorney. However, if it is only $10k, you might be better off filing in small claims court.

Non payment of payroll for 18 months.

If you were an employee, you can file a wage claim with the Labor Commissioner or a lawsuit in court for the unpaid wages. If you were a...