Installing a gas fired combi-boiler/hot water heater on each floor with baseboard heatingAdvantage: Relatively low cost of installation , no concerns regarding winter heating, splits the units heating hot water costs, would allow for conversion of 2nd floor bedroomDisadvantage: No AC, will require a large amount of storage, and would require to take up a bedroom closet to do so in each unitCurrently we are favoring option 2, but any suggestions from any contractors who have performed similar work?  

This is just a general comment, but from what I learned so far, you create an LLC in each state you have a rental, and if you want to add another layer, then create a holding company in a state where the law favors you. 

If the fees are too high or it's otherwise not advantageous to do a typical student loan refi, perhaps you are fortunate enough to have friends or relatives who want a higher return for their money (than money market funds are paying these days - basically nothing) that would be willing to lend you the student loan balance at a more favorable rate.    

Maybe I’ll target smaller out of favor asset classes.

While this offer may not be favorable for the agent, it is quite good for the owner.

It never once worked out in my favor, I either had to fix it myself or pay double to hire a professional to fix it the second time.

We have tenants in our building who have been there for 20+years on MTM leases.We are comfortable offering MTM leases and we like how they favor the LL, at any time you can issue a 30 day notice of non-renewal, raise rents any time and we still get first and last months rent and a security deposit equal to one month's rent at lease signing.

I always try to communicate a lot with the listing agent when writing an offer, as I like to find any pain points or wants and needs the seller has that can play to the buyer's favor.

I'm in a similar situation although we're to the point where the eviction has been decided in our favor.

Lending money would be my least favorable option mainly for the reasons mentioned earlier in my response to John.