Hey Caleb,The short answer is yes—MLS systems are regional, so photo availability and listing practices can vary quite a bit.

If so, can anyone recommend any best practices?

As for Alexandria specifically in terms of regulations don't take advice from a public forum - look up the laws yourself and make sure you understand them.

My plan would then be to diversify by partnering with my mother-in-law on fix-and-flip projects for a year or two, which would increase liquidity.

You didn't say anything about whether the lease or local laws actaully allow you to do this. 

They also don't understand the law, or the changes that are happening around the country.

Find Brandon's videos on YouTube for the "four square" method of analyzing homes and practice.

People trying to “wholesale” who lack knowledge of real estate principles, real estate law, the local real estate market, the market for the property type they’re trying to wholesale, etc, CAN NOT WHO;ESALE ETHICALLY no matter what they do.  

There are a couple of unique tax laws to real estate investors - 1031 exchange, bonus depreciation on certain improvements, Qualified Opportunity Zones, real estate professional status, etc.Make sure that the accountant you interview to understand the above concepts.best of luck!

We have education in real estate principles, real estate law and real estate finance.