Using a HELOC can work, but it's still a second loan on one property so I wouldn't be looking for a way to leverage one of your two properties just yet to get a third.

Record lease data using software or spreadsheets, correcting any errors or discrepancies.   

Do you think this will impact my ability to rent the property?

If you receive payment through zillow, it reports on time rent payments to expedia, renters have to opt out if they don't want it.

Have things come to that much of a halt?

A great way to build a portfolio is by adding one home at a time and there is a great discussion on the ability for investors to just get to 4 homes.

I understand that I need to prorate my expenses based on the square footage that is being rented out.However, I plan to move out soon and rent the entire house.

I have a BestEverConference ticket that I won't be able to use.

Try not to have your PI payments exceed 50% so assuming 50% expenses and short and long term cap x you might be safe.

The landlord could offer to mow the lawn and shovel the walk, while making the tenant responsible for repairing or replacing the washing machine.Landlords and tenants need to confirm what is required within their written agreement.