@Kusum Chanrai,
As it has been mentioned, it comes down to your experience level, desire for active or passive investment, etc.
I was in a similar position to you not too long ago and looked at various investment options (wrote a blog post about it here - https://www.biggerpockets.com/blogs/10305/67660-fi...). My conclusion was that MF made sense for me and I started to look for opportunities in different markets.
As you probably know, there are economies of scale that come with MF over a certain number of units (generally 75-100 but depends on the property and market). So we started to look at properties in the $10-$20MM range. Along the way we found others like us and we partnered on a 101 unit deal in Dayton, OH.
We just signed a 284 unit portfolio deal in Houston yesterday (after a year of constant looking and issuing about 20 LOIs in that market). As @Brian Burke mentioned, the hot markets are tough to break into but if you can identify a good deal, well worth it. We may look for partner on this deal as well (some Family Offices also expressed interest).
My point is there are many ways for you to get involved with MF. As a passive investor you can invest as a LP, if you want to be on the GP side and more active, you could be a loan guarantor, co-sponsor, help with DD, help with asset management, etc.
Hope that helps.