Raising rents is great, but at this time, hard to count on. 

We are seeing mortgage min qualifications being raised. 

All in the comps:#1 Raise the Monthly Rent#2 Minimize Vacancy Rates#3 Provide More Living Space#4 Add an Extra Bathroom#5 Add Extras to Your Real Estate Investment Property#6 Curb Appeal

If you can make inexpensive improvements and raise rents significantly, put more down to have lower payments and avoid paying PMI, or can force appreciation by adding value/put some sweat equity in and then refinance in a year to get your cash out, then it starts to make sense.

I can tell you right now that hard money lenders have raised their rates, their LTV's, and their points to lend right now so I would tried softly, and would not want that to be the type of loan I would want to have if I had other options. 

However, I'm running into a wall in raising capital.

CAVEAT If you have never bought a note, your odds of raising $ for a note fund are slim to none and slim left town.

Raise all the rents, then move out and have a fully renovated cash flowing 4 unit...

I never thought of raising rents actually.

or raise taxes across the board?