I've seen a situation two years ago where a new landlord had trouble evicting a tenant who was constantly late on payments because the tenant argued that the late payment terms in the lease had not been honored since the start of the lease and couldnt be suddenly enforced because of this. 

Together, we have over $200K (mostly in stock market investments), and our parents may help with the down payment.

If you're worried about cashflow, why would you do a 15 year loan with a higher payment -> meaning negative cashflow?

So, I'd probably lean towards you staying where you are and look for rentals to buy with the $100k as a down payment.

I am thinking about taking out 5 to 10% to fund a down payment on my next live in multifamily house hack.

Instead of moving into another single-family home, consider house hacking a duplex or triplex, this allows you to use low down payment loans (FHA, conventional) and offset your mortgage with rental income, accelerating your path to financial freedom.

Paint, Plumbing, Roof, Flooring, appliances.B- neighborhood.55,750 down payment + 20k in repairs.  75750 all in.Median rent for the neighborhood is 2k.532 cash flow.I already asked them to drop the price by 15k for us to remain in the deal. 

Doing this would allow me to cut my down payments in half. 

If you decide to keep your house, you can do an IRRRL after you have made at least 7 payments on your new mortgage.

Bank pushed us to 40% down payment so also executed a $85K seller carry-back loan to cross the finish line.