In the Pace Morby parlance I have come to learn that the gap funding or equity component is called and ET or "Entry Fee"..

I currently have  1 Business Bank Account that is for Master LLC and stuck on best way to manage cash flow  and flow of funds between account for all master expenses related to my business setup vs and also expenses/ rent related to the properties to ensure that I keep things clean, simple and easy for reporting, taxes.  

Also if the house needs rehab, how are you going to fund that.Is it deeded separately?   

If everything goes right I will be able to refinance and will have created 25% equity, or I may end up having to bring $10-20k to the refinance to get the 75% LTV depending on the appraisal, but even if that's the case it's still a great deal.

In the current environment, my under writing (that most would consider to conservative) depicts large negative cash flow after a maximum LTV refinance.- cash out refi loans have higher rate than if cash out was not occurring.  

Partner Driven funded this transaction by leveraging a combination of internal capital and strategic partnership resources.

.$10k STR rent on $1.3m property at 80% LTV  will be negative cash flow when properly allocating for all the expenses.  

To fund additional investments, consider side income, creative financing or creating a timeline with your co-owner for converting property B into a rental to generate cash flow.

They allow you to get funds at more favorable terms than with a loan or credit card.

Mortgage Funds and Indiividual Note Investors