But you should prepare an iron-clad partnership agreement.Don't be surprised if he wants more than 35%.  

My preference would be to talk to a lawyer first so you seem prepared and knowledgeable when you talk to the investor.

(a) This chapter does not apply to:(1) A person not licensed under this chapter who performs any of the acts described in § 17-42-103(10) as:(A) An owner of an individual freehold or leasehold interest in real estate;(B) In the case of a corporation, limited liability company, limited partnership or other entity recognized by law holding a freehold or leasehold interest in the real estate under subdivision (a)(1)(A) of this section, a member, manager, partner, or officer who has authority to make management decisions affecting the overall policy of the entity regarding real estate activities involving only the interest of the owner;(C) An individual attempting to acquire for his or her own use a freehold or leasehold interest in real estate; or(D) In the case of a corporation, limited liability company, limited partnership, or other entity recognized by law intending to acquire a freehold or leasehold interest in real estate under subdivision (a)(1)(C) of this section, a member, manager, partner, or officer who has authority to make management decisions affecting the overall policy of the entity;(2) An attorney in fact under a duly executed and recorded power of attorney from the owner or lessor authorizing the final consummation by performance of any contract for the sale, lease, or exchange of real estate, provided that the attorney in fact does not receive or have an expectation of receiving a fee, commission, or other consideration, directly or indirectly, for performing the act;(3) An attorney at law in the performance of his or her duties as an attorney at law;(4) A person acting as a receiver, trustee in bankruptcy, administrator, executor, or guardian, or while acting under a court order or under the authority of a will or of a trust instrument;(5) A person acting as a resident manager when the resident manager resides on the premises and is engaged in the leasing of real property in connection with his or her employment;(6) A person employed only at a salaried or hourly rate to engage in the leasing of real property for or on behalf of a licensed principal broker, the real estate firm of a licensed principal broker, or an owner of real estate, if the person:(A) Does not engage in or offer to perform any practice, act, or operation set forth in § 17-42-103(10) other than receiving a security deposit or payment as permitted by subdivision (a)(6)(B)(iii) of this section; and(B) Performs only one (1) or more of the following functions:(i) Delivering a lease application, lease, or an amendment to a lease application or lease to any person;(ii) Receiving a lease application, lease, or an amendment to a lease application for delivery to the principal broker, real estate firm, or owner;(iii) Receiving a security deposit, rental payment, or any related payment for delivery to and made payable to the principal broker, real estate firm, or owner;(iv) Acting under the direct written instructions of the principal broker, real estate firm, or owner:(a) Showing a rental unit to any person; or(b) Assisting in the execution of a preprinted lease or rental agreement containing terms established by the principal broker, real estate firm, or owner; or(v) Conveying information prepared by the principal broker, real estate firm, or owner about a lease application, lease, the status of a security deposit, or the payment of rent to or from any person;(7) An officer or employee of a federal agency or state government, or any political subdivision, in the performance or conduct of his or her official duties;(8) A multiple listing service wholly owned by a nonprofit organization or association of real estate licensees;(9) An officer of a corporation, a member or manager of a limited liability company, a partner of a partnership, or the equivalent of an officer of another form of business entity acting with respect to real property owned or leased by the entity or an affiliated entity under common ownership or in connection with the proposed purchase, sale, rental, or leasing of real property by the entity or affiliate if the acts are not performed by the officer, member, or partner for or in expectation of a commission or other compensation resulting solely from a successful transaction; or(10) A person employed primarily at a salaried or hourly rate by a corporation, limited liability company, partnership, or other business entity acting with respect to real property owned or leased by the entity or an affiliated entity under common ownership or in connection with the proposed purchase, sale, rental, or leasing of real property by the entity or affiliate if the:(A) Acts are not performed by the employee for or in expectation of a commission or other compensation resulting solely from a successful transaction;(B) Primary business activity of both the entity and affiliated entity is not ownership or acquisition of real estate; and(C) Employee is not providing real estate services to or on behalf of more than one (1) entity not affiliated by common ownership.

if not, then you could still market/list it in preparation, but may not be able to actually show it and execute new contracts until the tenants depart. 

I am prepared!

It was prepared by a person who I googled and found out that the person advertises (via trulia) as an NC agent.

I was prepared to pay cash at $60k.'

Suitland in particular is preparing for a huge homeland security building specifically by the branch ave metro.  

You should hire a lawyer or professional property manager to start the eviction process and be prepared to carry it out.

My gut feeling would be that newer land lords i.e. folks getting started with the rentals in the C and lower class neighborhoods will be affected first and most yet they probably will be the least prepared to manage the issues that may arise.