I'd likely over improve to target the higher-end tenants.

Improving your credit will definitely extend and enhance your investing gameplay (Rule #3)So...Rather than borrowing hard money to BRRRR your way into a deal, why not get those three really good deals under contract and wholesale them for cash?

While I was only 16 at that time with absolutely no market knowledge, my gut tells me that he significantly overpaid for it because things have only improved in the area, and market rents have not declined since that time either.

My understanding is that GENERALLY (I think there are other situations) I am only allowed to deduct interest if the proceeds are used to make improvements on the original property and cannot deduct the entire amount until the improvement are actually made.  

Yep, sold out of all kinds of masks at the home improvement stores here too.

Be very careful with improvements. 

How can I improve?

Only cosmetic work and improved distribution, good proffits. 

How can I improve my situation?

As we are looking at ways to improve our efficiencies and decrease vacancies, the topic of self scheduled showings is on the table.