all cash vs mortgage

[Moshe Streicher]

hi,im currently looking at a 2 family home,can buy it at 100k with value add opportunity of putting in around 15k and bring the value up to 150k.Question is do i put in the 100k in cash,do my add on and the get a mortage (but tying up my money if other deals come my way) or do i get a morgage right away,and refi after the value add(with closing fees ect.)