Could you gift the down payment to your mother in law so she can buy it and then transfer title to you when your house is done?

I would still work with a title company on this and let your lender know (if you have one) of the name change and what you are doing so they do not think you are selling the property.Another option would be to create a living trust for estate purposes and transfer it into the estate.

If that's the case, check out some of the economic data about what cities have strong job and population growth.

Overall, my primary goal is to create the opportunity to get into another home at minimal cost while keeping my parents in the current home, so I'm leaning toward transferring/selling the current property to them.

Firstly, well done for persevering and trying every avenue you thought would get you the data you needed.Most would have caved earlier and handed out there hard earned cash for old, saturated leads/records from the same prominent platforms which dump them pretty much when they receive them from either 1).the same large brokers AFTER the county has listed them on the county website or, 2). from the counties themselves directly AFTER the county has listed them on there own website, or, 3). from data scrapers on Upwork/Fiverr who scrape the data from those same platforms AFTER the counties/brokers sell those platforms the data being scraped by the freelancers.Anyway, rant aside you seem to of made the same mistake i made when I first started branching out away from providing leads to my original couple of clients i got from Upwork who wanted me to scrape data from court records in FL for pre FC leads.Simply, I didn't know where to look for the information I needed in states outside of FL.FL only allows the judicial route to foreclosure so I only needed to know/find/scrape the data from Lis Pendens documents for counties they requested.

Transfer wealth from rich to poor?

And if your selling NON mls props its hard to run data..

Looking for guidance on options. new builds aren't hard to finance and I would argue they are preferred to existing fix and flip loans, especially if you have experience. banks look at your experience, your builder's experience, loan structure, permits, etc you need to get an experienced builder familiar with advanced underwriting and negotiations with local, regional, and national lenders. in columbus we do ground up construction for clients at a 20% discount so they can BRRRR out of the new build with equity and we have pages and pages of data on what we build and why and it's all supported by market statistics. 

+1  Real Estate Investing Data and How-to Guides - This here shows that you can filter to Multi family but I don't see it as an option as well.

After buying this house, I partnered with others to invest in a duplex in the Wichita area.At the moment, I’m living in Tennessee, and I’m weighing two options: either selling my house and using the proceeds to buy a duplex in Overland Park or Wichita with my partners, or keeping the house for another 3 years, transferring it to our LLC, and renting out the entire property to maximize its rental potential ( $1400-$1600 ) I currently owe $200k on the property with a 6.5% interest rate, and my monthly payment is between ($1,700-$1800).