Naturally your property must sell before you can take title to the new one, but nothing prevents you from getting it under contract and make the process as smooth as possible.  

Your aim starting out should be to get the best reviews as possible and use guest feedback to make improvements as you go.

Consider starting small by house hacking a single-family home, renting out rooms, or adding an ADU if possible.

Then rent the bigger home out using a property manager, allowing her to possibly cash flow and maintain that asset and let it continue to grow in value.Encourage her to consult with a CPA or tax attorney to explore the best strategy tailored to her situation.

It's possible tenants would fill basement with junk and leave it behind when they leave...

Im doing a cash-out refinance and I want it to appraise as high as possible.

Possibly just one (or a few) Scaramucci.  

Actually, it is possible do structure a 1031 Exchange on the sale of one or more relinquished properties and then using the proceeds through the 1031 Exchange to construct improvements on real property you already own.

The app works at depositing checks.I dont plan on using the debit card much because I use my credit card as much as possible for the points and the delayed payment saves me interest.  

BiggerPockets also has a calculator to analyze deals, and I highly recommend you start this as soon as possible, even if you are not ready to buy.