For example, one previous landlord shared with me that the tenant parked a lot of cars on the property, so before tenancy began I emphasized our policies regarding vehicles and parking.

There are different types of entities (LLCs, FLPs, Trusts, etc.) and you protect different assets in different vehicles!!

I bought it at auction a year ago and now have my second tenant family living in it.The driveway is about 25 feet from a 4 acre woods (neighbor's property) and the tenants have problems with rodents eating their car wires and the insulation attached to the underside of the hood on both their vehicles.

Since it was brought up earlier I figured it was worth mentioning what is always or sometimes exempt from bankruptcy:-State and federal income taxes within the last three years-Student loans (mentioned above)-Vehicle accident claims due to drunk or reckless driving-§523 Bankruptcy Code, money obtained by fraud:§523 Bankruptcy Code-Eve of bankruptcy luxury purchases-Willful and malicious injury to another or his property-Government fineNone of that will really help you at all, but I figured it would be good to know anyway ;-)When you make loans you assume default risk.

. - For deals where we both had money in the deal, my LLC owned a part of the LLC vehicle used to invest.- For deals where I just earned a fee, like a standard waterfall arrangement, my company was paid a salary out of the investment vehicle. - Foreign Investor money is flowed through the LLC to the foreign company operating in the US, and then back to BVI after corporate level taxes have been paid.For my own accounting, ESPECIALLY business entities used to invest international partner money, I use a Big-4 accounting firm to do the books in order to protect my own risk of IRS audit.

It seems to me that the issue of what vehicle to hold your properties in is a very debatable topic and also depends on how much money one would want to spend on this protection.

In your case you can probably get a personal umbrella which would cover your primary (if you own), your rental property and any vehicles you own.

Should I jump every time a neighbor complains about branches falling and am I liable if a branch falls on there vehicle?

Yes, keep all receipts - get in the habit of taking letter-size manila envelopes (the kind with the fastener) for each property in your vehicle. 

When you're walking out to your vehicle, it's good to have a screwdriver in your hand.