Some jurisdictions may require mechanical and electrical drawings to be filed for approval while others may only require electrical.

A debt is not secured by your home if it is secured solely because of a lien on your general assets or if it is a security interest that attaches to the property without your consent (such as a mechanic's lien or judgment lien).

I've been fixing so many parts that a mechanic should fix but I can use that money for labor and put it towards my marketing. 

Restaurants mark up the food ,  car mechanics mark up the parts .

That includes mortgages, local/state judgment liens, mechanic's liens, HOA liens, etc.

Anyone know how to remove a Power of Sale mechanic's lien?

When you owner finance, you are selling the house to someone who is borrowing from you to make the purchase rather than a bank.Here are the basic mechanics, though I advise more research on the details:1.

They do not have to be a good mechanic or even know the truth about the car they are trying to sell you.

Search for any mechanic's lien??

@Harry WilliamsYou should have a sit down with an attorney and CPA to discuss the mechanics behind an LLC.LLC's in itself are pass-through vehicles and do not pay a tax.In regards to your question, each LLC should maintain its own bank account.