With current rates, inventory and demand you may have to bring a little extra down payment.But real estate investing is not a great cash flow play, it's more a net worth game.

Holding a flip for a few extra months can erase lots of potential profit.

However, if it's only an extra $100 per month insurance savings I would not worry about it.

So it's really a bad deal for $50 or $100 extra you are risking to loose thousands.Similar with renewals, while we do stick to annual increases, we keep existing leases a little below fair market.

The sq ft price also doesn't matter because a 1500sq ft 3/1 and a 1000sq ft 3/1 will have roughly the same kitchen cost and the extra 500 sq ft is generally the cheapest part of the rehab with paint and flooring 

On a 5% cap building, every extra dollar of NOI equals $20 in value, so you should squeeze out as much as you possible can.

An extra bedroom can add $20,000 to $50,000 to your home's value, depending on your local market. 

I will also convert the extra 2 kitchens to wetbars/kitchenettes and fully remove 220 plugs for stoves.  

When my mindset changed from having an emergency fund to having an opportunity fund with extra savings or credit lines, it was a breakthrough.  

Meantime, there's nothing stopping you from putting any extra funds you do have (starting with the lazy $5k you mentioned) into EXTRA principal-only payments!