If you can add more detail to your question, I'm sure others can chime in more productively so apologies for the generality of my response. 

You could pick a product where you'd only have to replace the damaged tread like vinyl treads but it'd probably stick out as the shiny new one in a bunch of dirty old ones.   

Do some homework and you will likely find that making debt-financed investments with your Roth IRA will be quite productive. 

They have a lot of unique loan products including a 30 year commercial note.

You will want to talk to someone on the commercial lending side for this type of loan product.

One of the first things we learned was the difference between physical occupancy and economic occupancy.

During the day I'm a full time Sales Manager for a domestic, independent manufacturer of plastic houseware products and on the side I'm a budding Real Estate Investor in north central Massachusetts.Today my portfolio consists of zero doors.

These clogs are not pipe related but rather the tenant flushing of wet wipes and or other products that should be thrown away not flushed.

This is better for the investor and for the country as whole as valuable resources are allocated to highly productive investments not marginal ones.

In FL now it's almost becoming a standard that won't generate much more rent but is a detractor if you don't have granite or quartz (these products are relatively cheap here in FL).