Don't miss the bonus heated flex room with roll up door that's also an EV ready garage.

Think of it as a bonus room with a bathroom, no kitchen.

A bonus for paying early.

Local is a bonus, not a requirement.

An added component to think about is the forced appreciation/ARV of the home, this "bonus value" will be calculated into the refinance when you do decide to. 

Send them birthday gifts, Christmas gifts, give them a bonus.

You can significantly reduce your taxes with a cost segregation study and bonus depreciation by accelerating your depreciation.

It's always a bonus if you allow pets because people traveling for work very often have pets with them and have a hard time finding accommodations so you can charge a little more, plus collect a pet deposit.

Could someone recommend an engineer or a company that does cost/bonus segregation on a single family home in Center City Philadelphia? 

Also if you have multiple units I send out an email blitz to all my tenants that I have a vacant unit located at XYZ Property and that I pay a $100 referral bonus if someone they refer to me ends up renting it from me.