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I know the neighbor is making a lot of complaints to HOA which prompt them to issue violations that I continually dispute.

Clearly outline all terms in a written agreement to prevent disputes, ensuring clarity on interest rates, payment schedules, late fees, and default provisions.

The understanding of both the buyer and the seller need to be the same.2) In simple technical terms, as Ned Carey said, a contract needs:A) An offer (in purchasing real estate it is an offer to purchase, or an offer to sell); B) Acceptance of the offer; and,C) Consideration (each party exchanges something of value - money is exchanged for property and property is exchanged for money).Also - there needs to be a "meeting of the minds" - both parties must have a mutual understanding of, and a mutual agreement to, the terms of the deal.3) A contract is the means by which we capture this understanding and record it in such a way that it can be used to resolve disputes that may arise from the deal.

If needed, consider mediation for conflict resolution.

I agree that if an amicable resolution is possible, such as offering a cash settlement or mutually agreeing to terminate the lease without incurring any early termination fees, it would likely be the best outcome for everyone.

Also, the state of formation is likely where internal disputes would be brought among LLC members, so if you and a partner live in CA, you probably want to arbitrate in CA if the two of you had a disagreement.

We recently found out the hard way that the laws there are heavily skewed in favor of tenants (we're still trying to evict a non-paying one, after 7 months), despite reading that Massachusetts is middle-of-the-road in regards to landlord/tenant disputes before buying.

The vast majority of lawsuits against Landlords are for wrongful eviction, security deposit disputes, and Fair Housing Violations.

so I'll do my best to condense the situation down.
Last September I got soft hearted and agreed to a renter who had been down on his luck  (ya I know don't think with the heart) and that the rent was  going to be pai...