Know what everything costs, be ready to jump as soon as you spot a deal, and be creative enough to make it look good. 

This can be perceived as a "deal" due to price point.Alternatively, can the unit be delivered vacant?

It's definitely possible and we have done some similar deals.  

What’s a good rule of thumb to follow when starting a business or owning multiple properties for how much you should set cash aside to go towards the mortgage, expenses, emergencies and paying yourself?

I'm very familiar with how DSCR loans work, as well as hard money fix n flip since I primarily use fix n flip loans constantly for my business(I don't own any multifamily properties yet, I primarily do fix n flips at the moment).. 

What made you interested in investing in this type of deal?

I understand his point that the lender will be interested and your deal when you have an actual deal in hand.

Also, maybe just get out of the landlord business if this is how you run things.

Hello,I am pursuing an off-market deal for a 4-plex.

Renting an AirBnB usually is a better deal for them than a hotel because they get a whole house for around the same price or cheaper.