You might be able to secure a loan with 20% down in some cases.

Quote from @Gary Bonds: Any best practices when attempting to secure business funding from a bank, in the form of a loan or credit?

Best practices for security deposit deductions (damages)?

I did not read the rules around security deposits. you may be allowed to use those funds and still file a small claims action for any remainder, but I can't imagine that it would be worth it if you have at least one month's rent in security deposit. 

Tell them if they don't, you will take it out of their security deposit and they will have to replenish their deposit.

He said they are killing it compared to regular SFR rentals.

But I’m not insensitive to the security issue: I wouldn’t want unvetted, unaccompanied strangers walking through my home. 

While we both have strong W-2 incomes, the large number of properties I own has made conventional lenders and agents caution that securing a loan for our primary residence could be a highly complex process.I’ve consulted with some local banks I work with, and one has expressed potential interest in financing our primary home.

For this, plan on securing at least 12-15 acres of land.

For those looking to scale their portfolios, now might also be an excellent time to secure funding.