More traditional things I would suggest, billing back utilities, charging for pets, upgraded finishes to increase rents, charging fees for things like storage or extra parking.Authors I would suggest Ken Mcelroy and Dave Lindahl.

There is just a little less room for error when dealing with a smaller park as you don't have as many lot to absorb a vacancy or an increase in water usage(even if you can collect)..or some repairs to do etc.Good job on negotiating them down so far...for me i will still have to go lower and look something like this....200*18*12*.5/.1=216k purchase priceI prefer to pay lower than this based on a smaller park and limited upside potential based on your observation of market lot rents.  

Before you purchase a property, I would suggest going to your bank and applying for an increase in your credit card and line of credit limits (don't use them, just have more space available).

The federal government simply can't afford to have interest rates go too high so they won't.Also keep in mind if interest rates jump up like they did in the last few months, it is because the economy is trucking along and your rents are likely increasing as well.Having said that, I'm a big fan of evaluating risks from possible scenarios and planning for those contingencies so here's a few contingency plans I use.1) As you're already considering, stagger your maturities.

So we offered a 4 month lease at an increased rate.

With proper management and updates, I should be able to increase gross rents by $160 monthly ($1,920 annually) after the first year.

Is there anyway to increase rents/ decrease cost? 

The overall ROI increases because they will end up prevent you from evictions, missing rent for a month or two, etc.You could also add in cleaning and other services that are separate from rent but makes life easier or the tenants and depending on your type of tenants most would be willing to pay for similar types of services.

The bad location, may get you a 10 cap on paper vs a 6 cap for the good location, but the value you can add, increased rents and being able to actually collect rents will make up for it in the end

He is now claiming material price and labor increases over 6 months to the tune of $40000 (total project price is $292000).