There is a question when you apply for a loan that says, "is any of the down payment borrowed" so you either have to discuss that strategy with the lender or use actual cash you have for the DP then replenish as needed from the LOC.

(Side note: I will still be paying into an account, over the course of the next three years so as to replenish the amount I end up borrowing) Thanks in advance for any help!

However, the downside is difficulty replenishing the inventory. 

Rent in Socal is ~5% cap rate, so $2100/month gross rent.I'm down $350k already, and I need to replenish the $350k. 

When you create equity in your new acquisitions, replenish the existing lines of credit so that you keep your foundation intact. 

Replenish your benefit. 

For VA, if you want to replenish our entitlement, you refinance, but you don't have to if you don't want to.

Unfortunately they have the right to do this and you can not charge them for the security deposit to replenish it, UNLESS they renew their lease, then according to the order they must replenish the security deposit.The only recourse you have is to go after them for any charges you may have against them if they move out.

But I still need some cash to replenish the bank account so I can develop another rental property. 

It is a line of credit meaning that it replenishes itself over the term of the loan (usually 20 years of interest only payments).