I have done 2 successful flips and also have one 1 buy and hold.Now that I have a little skin in the game I’d like to ask my dad who is 62, with a 6 figure 401k to allow me to use $50,000 to invest in more real estate.

Keep in mind that Airbnb's are not allowed in certain places - for example a lot of condo HOAs don't allow STR.Make sure to read the city regulations well and note that it may change drastically in a short period of time!

This allows you to not put all your eggs in one basket and pivot based on the market.

Know your rents in advance "market rents" so you can gauge your 75% allowance on the deals.If you can find a 2-4 unit by the University or by one of the higher rates school it will help you in the future with renting unit. 

I have done 2 successful flips and also have one 1 buy and hold.Now that I have a little skin in the game I’d like to ask my dad who is 62, with a 6 figure 401k to allow me to use $50,000 to invest in more real estate.

@Christopher Mooney- HELOCS are relatively  generic  from one lender to another ...check terms ...margin...indexes ..maximum ltv and cltv  allowed ...interest only payment  terms ...overall terms ....prepayment  options .   

"You're obviously not happy here and the property is not a good fit for your needs; so, we will allow you to get out of your lease with no penalty as long as your provide proper notice..."

I have done 2 successful flips and also have one 1 buy and hold.Now that I have a little skin in the game I’d like to ask my dad who is 62, with a 6 figure 401k to allow me to use $50,000 to invest in more real estate.

If a property is zoned residential, sometimes lenders will allow a borrower to finance it as a commercial loan under extenuating circumstances.

Since there are certain sellers that have existing loans with a rate below 4%, I think I can do a mix of cash/take over loans at 4% to allow me to cash flow.