This is my situation, what do you recommend?

[Stephen Meyer]

I am a registered nurse, I earn about 80,000 per year. Of that 80,000 I average between into 600-1,000 per paycheck (biweekly) into a fund I am considering for investing. Right now, that fund is in ETH and is about 6,000 total which I estimate to return probably around 20% by the end of the year. 

That fund should have around 24,000 by the end of the year.

I have a separate fund with about 130,000 invested. I am estimating that fund will have accrued to 180,000 by the of the year. I estimate these to be appropriate returns for at least the next 4 years. 

I also have 401k with 4,500 which I estimate will be 7,000 by the end of the year.

Fund 1: 24k

Fund 2: 180k

401k: 7k 

Right now, I am a renter that pays 900 per month, with a stay at home wife with a child on the way. The buyout of the lease is 3k, until January of next year. 

I am planning to buy a house next year, I could buy a nice but cheap house near the hospital I work at for about 100k

Option 1: Keep the large nest egg invested. Use Fund 1 and 401k to buy a cheap house with in walking distance to the hospital to continue saving money. 

Option 2: Take a larger portion out of Fund 2 about 30k to buy a duplex that's with in driving distance from the hospital. I would use 30k + 24k (Fund 1) + 401k to finance the duplex. The average duplex cost near Canton Ohio in Grade C-B areas are about 220k. I could rent the other side for around 1,100 to pay down the mortgage. This might be easier to expand with more duplexes in years to come verses option 1.

Option 3: There are cheaper duplexes in Akron, OH that might range from 150k. I could follow the same plan as Option 2, but switch jobs to a Akron Hospital and have a higher cash flow. 

Those are the 3 options I have in mind, what would you do in my situation? If there is something I'm missing out on, please let me know.