Agreed on spending money, I would be asking the owner to purchase all of the smart locks himself as an investment into the property. 

In 2019, I launched my own revenue management agency to help Airbnb owners boost their income and achieve greater returns on their short-term rental properties.

They can be a very valuable resource when deciding if a property is a good investment or not.  

If you do decide to help them out and rent continues to be late simply have a talk wiht them and remind them that rent helps pay your bills and since you did them a solid ask for the same in return.  

When you get an owner that replies, FOLLOW UP.  

I am also versed in Novations, and owner financing.

I'm a central CT based investor, flipper, and property management company owner. 

If this is for a residential 1-4 unit non owner occ / investment property I would compare a few different lenders.

You must give proper notice before each showing, you must give the renters the opportunity to buy the house first, and the new owner will have to honor their lease if they intend to stay.

I'm wondering what tools and resources you all use as rental owners and investors to get or keep your financial ducks in a row?