If you and your wife file a joint return then from the federal perspective you and she (or rather the tax return that reports the activity of the properties - all of them both from during your marriage and before your marriage) are one and the same tax payer.

Research about other investments led me to "Rich Dad, Poor Dad" and changed my perspective completely.

From my perspective, meeting 1 or more viable prospects constituted a successful open house.

That is a mathematical fact proven over multiple decades of research. 

Typically, a lease should state that there is "joint and several liability in the case of multiple Tenants."

All the investor friendly multi-unit properties in decent, safe neighborhoods get multiple offers above asking, including cash.

Great information and I have a new perspective to move forward with!

In my area those are either super run down duplexes or in super sketchy areas.My next plan was to try to find a decent single family home with multiple bedrooms and rent out the other rooms, but I wanted to try to avoid the whole roommate situation.My next plan was to try to buy a condo or townhouse because they are cheaper, but then I am paying the entire mortgage myself for about the same price as just renting an apartment.Do any of these ideas sound worth it and possible with only being able to spend a maximum of 7k out of pocket?

I have been reading about the folks getting multiple units. 

@Lisa Li most investors do hold mortgages for long periods of time, they just have multiple mortgages.