If none of those solutions will work, and they are MTM, you can give them notice and terminate their tenancy, repair the stairs and re-rent out the unit. 

There are work arounds to save money but it's always property specific solutions. 

Additionally, you may need to have discussions with your JV partner to come to a mutually agreeable solution for the long-term ownership of the property.

The cost includes your stay, all food, drinks.I know many women go with a specific goal in mind, but there is so much power in just BEING AROUND people who you can relate to, who are doing what you want to be doing, and who usually happen to have creative solutions to problems you've been stuck on & had no one to brainstorm on with!

It allows you to upload pics of the receipts, categorize them, label them, and so on.

To me it seems like such a straightforward easy solution that bypasses any law anyone can impose on wholesaling.What if you borrowed money from your "dad", ot "best rich friend" and bought houses with that money and sold the house immediately after you bought it to an other cash buyer?

Same beer, different label.

Glass block and tile are probably the simplest solution.

I don’t think adding a 7th person is the solution.

Then follow those concerns with solutions, such as having a system in place for tenants to make maintenance requests (including in emergencies), why all of your spare time won't be consumed by these investments, being properly insured against hazards, etc.Your wife doesn't have to be passionate about real estate like you are but if you address the concerns upfront, it's much easier to get the ball rolling in the right direction.