Getting equity out of a propert through rehab and raising rents

[Trey Prince]

Currently own a fully occupied triplex in the western mass area. All tenants are paying under market rents. With the appropriate rehab I can raise the monthly rent roll about 700 dollars all together. However I am not sure if these tenants can afford it. How should I go about making these renovations and putting these units back on the market. Looking to get equity out of the property by increase the net income.