Renting out by the room can be tricky, but remember that your utilities will be used up a lot more the more people you have in the place -especially your water bill.I would have it in place that utilities are split equally between all tenants.

Are they worth the additional risk? 

When you're looking for possible 1031 replacement options, remember that you have a very wide net of potential assets to reinvest in. 

There may also be other creative financing alternatives available, such seller financing, partnerships, private money lenders, or utilizing the equity in your current home.Do extensive due diligence to evaluate a multi-family property's finances, condition, rental prospects, and market worth before making an offer.

An investor should offer the price that makes the purchase meet their target ROI.A buyer can always renegotiate if an inspection finds repair issues.I remember that you stated on another post that you are working with an experienced "investor" agent. 

Please remember any “retirement money” you lend this person can be lost literally overnight.

You need to understand the answers to those questions, and then you can determine if it's worth the purchase or not. 

Here are some things to consider when deciding whether to lower the rent: Evaluate Market Demand,Assess Feedback, Be Flexible, Remember, finding the right balance between maximizing rental income and minimizing vacancy is key to successful property management.

On a 15-year note, other people are paying for your lovely retreat, and after the loan is paid off, it could be worth double or triple what you paid!  

I agree with Ken, get some costs and see if it's worth it but depending on how old the roofs are on your dwellings if you have a claim and replace the roof your rating might not really change.