Do not place yourself into a position of needing to sell in a reduced value environment. 

Also to identify & screen opportunities. 

,Buying, renovating, and selling is a great strategy, but here are a few things to consider:Start with the Numbers: Make sure you know your ARV (After Repair Value) and work backward to calculate your budget, including purchase, renovation, holding, and selling costs.Financing Blindspots: Even if you’re buying in cash, plan for potential delays or overruns in renovation costs.

Then, dividing leads into categories where they say “yeah I might sell in 6 months “ and following up with the people in 6 months, that is the real recipe.  

It’s currently vacant and we are considering selling, but the foundation will be an issue.  

If so, you can't really pivot to short-term rentals there and have to capitalize on the inn vibe and in-house services.My major question is why is the current owner, who bought it after it sat vacant for twenty years, looking to sell you the problem they can't fix?

Adding and making better could sell or rent faster, but it won't get you more than what the market ARV and rent is set at from other similar comps in the area....and your Interior Design background will help, if you you it mostly as an understanding of cost. 

I would recommend going to someone that has experience in identifying photo shopped documents. 

If you’re not able to, then it may be better to sell the condo, take the profit (if you have some equity in the condo) and put it into a multi-unit to househack again.

In regards to tenants, to putting the house on Section 8, to the selling of the property.