That could work, but it's not common, advisable, or best.I highly recommend you start digging into a book or two about commercial investments because they can absolutely be different, and to your benefit.

We will likely get an LLC for our wholesaling business, and I'm not certain if there is benefit in my non-realtor wife to have only her name on the LLC.

@Michael Miller, I think that protecting your assets in a LLC also has tax benefits to you as well that you may not receive otherwise. 

You could try and charge a % of profits, but how easy would it be for them to operate either under the table or at a "loss" to avoid that.So if it were me, i'd look at doing a lesser amount to start and phrase it as a benefit to them to help them get their business off the ground with an excerpt to reevaluate after a year.

The benefit of having a software is that you can always go back at your historical data in case you wanted to do some analysis on your business. 

Its added benefit is the record keeping portion is always at my fingertips. 

You get to take full advantage of the tax benefits and it is fairly passive.

You might get some tax benefits by holding rental properties.

They don't remember it unless it is to their benefit generally speaking.

I'm not a socialist, but health care is a special case where it would make sense for the feds to "regulate commerce" for the benefit of the people.And back to real estate...I hope your RE investments cover you in the event of a catastrophic health event.