In both cases, the end buyer went with me to the property to review the property before we submitted the offer - jointly.  

“Fannie Mae’s new Refi Now option will help more homeowners refinance by removing some of those barriers, improving affordability and promoting sustainable ownership.”The programs aim to expand refi access by lowering costs and loosening some eligibility requirements.

And use that to improve your existing property.

What is not allowed is this concept of wholesalers "joint venturing" to wholesale each other's deals.

@Mike Brown - Tenant improvements are negotiable and that is ironed out during lease negotiations.

One of the applicants applied for our apartment as a single applicant, but submitted a joint tax return (with his spouse) as proof of income.

I called a window guy I use and he basically dismantled the entire louver mechanism that controls the shutters themselves and then cleaned them as well as each shutter joint.

Another option is look for capital improvements on your existing properties.

The city will always tell you what you can't do unofficially, it's when you get the attorneys involved they will tell you that yes you are grandfathered and you can make improvements within the original zoning. 

Also, do all the minor repairs with the major improvements to ensure all the expenses can be capitalized as repairs are not capitalizable if you do incur the repair expenses separately.