Anything and everything that you can do to show others (and prove to them) that you have a talent for selecting properties and producing actual results.If you do that, people will take notice. 

@Thomas Farrellmiscellaneous reactions-BRRRRs won't produce cash flow - they're an equity strategy, not a cash flow strategy-OOS BRRRR on your first deal will be incredibly difficult. 

Quote from @Greg Scott: LOL  Very creative.It could produce a windfall, or perhaps, massive IRS penalties.  

Hard to produce cash flow or break even with that much debt, at that rate.House-hackers, however enjoy certain one time (non-scalable) advantages that should be taken advantage of in the early days: - They can assume pre-existing debt like VA and FHA Loans (rather than take it on Subject-To which is dramatically riskier).- They can rent by the room and self-manage to produce day 1 cash flow.- Many of these HCOL areas also have strict limitations on AirBnB or short-term rentals... that do not apply to owner-occupants - thus allowing for extreme cashflow potential for house-hackers.

STRs generally produce more income than LTRs, but they are more work.

A $240k loan amount on a $249k purchase price seems crazy and I'd never expect to produce any net positive cash flow doing this.How are you calculating your property taxes?

Not likely to produce the result you think you'll get.

$400k equity is producing $1600/month cash flow for a return from the cash flow of 4.8%.  

Because, the lender is entitled to know what risk they are taking with their money.That being said, on seller financing, if someone gets sued and loses, the lien/judgement can be filed at the county, (it's not automatic, someone has to prepare and send the paperwork) which the bureaus will pick it up on producing a credit report.

See what qualifications people are looking for and do what you have to in the meantime to produce income while you're studying.