Because we can buy property with Fannie Mae mortgages, we have extremely low interest rate risk, and so far, it seems that our community have been far less impacted than the apartment folks. 

If you do not plan to occupy the property then the "conventional" loan type you would need would be a Fannie Mae HomeStyle loan. 

Hard money lenders don't have to adhere to Fannie Mae guidelines because they're using private money. 

For example, Fannie Mae loans if an existing first mortgage is being paid off through the transaction, it must be at least 12 months old at the time of refinance, as measured by the note date of the existing loan to the note date of the new loan.  

This freed up future Fannie Mae financing slots - as you can only have 10 mortgages in your own  name through Fannie Mae  - and we were at 19 at one point between my wife and myself.  

You'll need to be sure to shop lenders ( for example if you're doing a 203k or Fannie Mae Homestyle, which are both renovation loans). 

One way to create more housing is (1) deregulate rent control and building of affordable housing and (2) work with Fannie Mae/Freddie Mac to create loan programs for investors to buy up properties at reasonable interest rates and maybe with less down.

Loan options -FHA for multifamily idea 3% down - Fannie Mae / Freddie Mac 3% down -My dad was a vet.

You can have infinite amount of loans.Most people start with 10 Fannie Mae loans then move onto commercial loans after that.

However, there are seasoning requirements for both Fannie Mae and DSCR refinances, unless you opt for delayed financing.