some good tips already in this thread.But I think the best primer would be Brian Murray's "Crushing It In Apartments". 

In the last few years it's been mostly small hotels but lately larger office spaces are being redeveloped into condominium projects.  

I am far more confident that the vacation rental market will steal market share from hotels going forward than I am about an eternal property value increase. 

Any tips would be greatly appreciated :)

If she scoffs tell her she'll be financially responsible for any costs related to the moving-in tenant's expenses due to them not being able to move in (storage fees, a hotel room, etc.) and that you'll immediately start eviction on her which could cause an issue with her buying her home. 

If you have been wearing all the hats yourself and you know it is time to hire, we are here with Beka Shea to give you a few helpful tips on how to make that first hire.

Any general tips for House Hacking?

Any tips for teens who want to prepare for a real estate future?

A couple tips, don't pick up when they call, let them leave a VM. 

Are there are any tips that fellow investors can share.