Gutted the floors myself and installed new subfloor and new flooring on entire first floor.

This included modernizing the kitchen with high-end appliances, upgrading bathrooms with spa-like features, and adding hardwood floors for a luxury feel Lessons learned?

Floor plans?

New paint, lvp floors throughout, new bathroom.

(Previous rent was $1,300 but we're about to put in a brand new kitchen from the studs, new flooring throughout the house, new furance, adding A/C, etc).So do we just pay for it all upfront and mostly drain all of our savings, or do I let the rent pay for it and utilize our other savings to get a second property this spring/summer to increase our cashflow? 

This included modernizing the kitchen with high-end appliances, upgrading bathrooms with spa-like features, and adding hardwood floors for a luxury feel Lessons learned?

I've got a mixed use building with a vacant 5200 sg ft. medical space on the first floor.

. :) A zoning change can take up to 6 months, approval isn't guaranteed (despite Aldermanic support), and potentially cost a lot of money (architectural site / floor plans & dimensioned elevations, zoning attorney, holding costs, etc.) 

Always be cautious of what you charge on things like paint, flooring etc.. most judges will use life expectancy and divide out a pro rated amount you could charge the tenant for excessive damage and not normal wear and tear 

In fact I had one done that size over the summer from some real slobs who moved out, and it required an inordinate amount of deep cleaning including almost one full day just on the filth of the kitchen floors, and it was $400.