When creating my LLC I was not allowed to use a PO Box and had to use my personal home address.

You should be just fine with the properties in your personal name and an umbrella insurance policy.

I have 2 LT rentals, one short term rental & my personal property-has a good bit of equity. (4 properties total) 800+ credit score & good income.I’m looking to get in the commercial space but I’m tired of putting down 20% cash every time I find an opportunity.

I would definetly consult with an attorney before and ask if you would be able to get these people out of your property in you needed.If may just be easier to steer clear and try to find a good applicant with a SSN#Or, if there is a company that employs a lot of people without a SSN# you could reach out to the company, ask if they need housing for there employees, and then rent to the company instead of the person.

I always recommend that anyone getting started attend in person meet ups.

Does that mean I need to be under contract for the replacement property?

The intrinsic complications of a contract should be overlooked by a professional. 

Any lawsuits should be limited to the assets of the LLC and not your personal assets (assuming you run the LLC appropriately and the corporate veil is not pierced, some debate as to SMLLC).

Hello Everyone, I am looking to create a tenant contract for my rental property, but I don't know where to start.

It's not going to cause it to appraise for more as the appliances are considered "personal property" and not part of the actual property.