Here's how I do my due diligence:1) Portfolio matching: (takes 30 seconds per deal)a) Have an educated opinion on where you think we are in the real estate cycles (financial and physical market cycles)b) Then only then pick the strategies, capital stack, and specialized asset subclasses that make sense for that opinion.

you can also hedge  your bets by maxing your employer 401k match and max your roth now, giving you options later on, because you never know.Your penalty for failure is less., if worst case happens, and you crash and burn, at your age, overcoming a bankruptcy or having to walk away from a property, you can rebuild your financial picture well before it's a more significant part of your daily life when you are older, and might need to leverage credit for the bevy of financial demands that come later in life. when you do have kids, a house in the burbs, 3 cars, and college payments....etc.Your lack of experience is the same as anyone else getting started, like me, twice your age. 

Invest in 401(k) only enough to get the employer match, then you can max fund Roths or save for down payment or both.With a Roth you can always take out the amount you put in tax and penalty free so this could be part of your down payment savings as well. 

You will want copies of the lease, when you meet the tenants ask them about security deposits and rent so you can confirm that it matches what the seller gives you. 

If so, review it to ensure it matches the estoppel certificate4.

It doesn’t match the house and doesn’t add anything.

google the market first then hone in on the companythere are also brokers who specilize in matching buyers to turn key vendors@Mike D'Arrigo  Mike does this as do many others on BP.

Those turnovers, more than normal maintenance requests, and the cost of the occassional eviction eat into the actual real life cash flow you will realize with a property like this and long term will not match the paper numbers that look good and enticing as you evaluate the deal now.Even if you can buy in a lower end B or solid C neighbrohood, it is drastically different than a D property in my experience.

consult with the city first, then find the opportunity zones, then find the deals that would match your plan, then find the money. consult with officials and other investors that have done these types of investments, learn, step, learn, step

If your financing doesn't match up with your strategy, you could be on the hook to pay back the full mortgage once the first unit sells, rather than paying back in installments upon the sale of each successive unit.